Merge drm/drm-next into drm-misc-next

Let's kick-off this release cycle. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
author: Maxime Ripard <maxime@cerno.tech> 2022-10-18 15:00:03 +0200
committer: Maxime Ripard <maxime@cerno.tech> 2022-10-18 15:00:03 +0200
commit: a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb (patch)
tree: b2d44a1da423c53bd6c3ab3facd45ff5f2087ffd /drivers/video
parent: dma-buf: Remove obsoleted internal lock (diff)
parent: Linux 6.1-rc1 (diff)
download: linux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.tar.xz
linux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.zip
63 files changed, 659 insertions, 307 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index a003e02e13ce..936ba1e4d35e 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -268,6 +268,19 @@ config BACKLIGHT_MAX8925
 	  If you have a LCD backlight connected to the WLED output of MAX8925
 	  WLED output, say Y here to enable this driver.
 
+config BACKLIGHT_MT6370
+	tristate "MediaTek MT6370 Backlight Driver"
+	depends on MFD_MT6370
+	help
+	  This enables support for Mediatek MT6370 Backlight driver.
+	  It's commonly used to drive the display WLED. There are 4 channels
+	  inside, and each channel supports up to 30mA of current capability
+	  with 2048 current steps (only for MT6370/MT6371) or 16384 current
+	  steps (only for MT6372) in exponential or linear mapping curves.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called "mt6370-backlight".
+
 config BACKLIGHT_APPLE
 	tristate "Apple Backlight Driver"
 	depends on X86 && ACPI
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index cae2c83422ae..e815f3f1deff 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_BACKLIGHT_LP855X)		+= lp855x_bl.o
 obj-$(CONFIG_BACKLIGHT_LP8788)		+= lp8788_bl.o
 obj-$(CONFIG_BACKLIGHT_LV5207LP)	+= lv5207lp.o
 obj-$(CONFIG_BACKLIGHT_MAX8925)		+= max8925_bl.o
+obj-$(CONFIG_BACKLIGHT_MT6370)		+= mt6370-backlight.o
 obj-$(CONFIG_BACKLIGHT_OMAP1)		+= omap1_bl.o
 obj-$(CONFIG_BACKLIGHT_PANDORA)		+= pandora_bl.o
 obj-$(CONFIG_BACKLIGHT_PCF50633)	+= pcf50633-backlight.o
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 8ec19425671f..b0fe02273e87 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -753,7 +753,7 @@ out:
 	return ret;
 }
 
-static int adp8860_remove(struct i2c_client *client)
+static void adp8860_remove(struct i2c_client *client)
 {
 	struct adp8860_bl *data = i2c_get_clientdata(client);
 
@@ -765,8 +765,6 @@ static int adp8860_remove(struct i2c_client *client)
 	if (data->en_ambl_sens)
 		sysfs_remove_group(&data->bl->dev.kobj,
 			&adp8860_bl_attr_group);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/video/backlight/adp8870_bl.c b/drivers/video/backlight/adp8870_bl.c
index 8b5213a39527..5becace3fd0f 100644
--- a/drivers/video/backlight/adp8870_bl.c
+++ b/drivers/video/backlight/adp8870_bl.c
@@ -925,7 +925,7 @@ out:
 	return ret;
 }
 
-static int adp8870_remove(struct i2c_client *client)
+static void adp8870_remove(struct i2c_client *client)
 {
 	struct adp8870_bl *data = i2c_get_clientdata(client);
 
@@ -937,8 +937,6 @@ static int adp8870_remove(struct i2c_client *client)
 	if (data->pdata->en_ambl_sens)
 		sysfs_remove_group(&data->bl->dev.kobj,
 			&adp8870_bl_attr_group);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/video/backlight/arcxcnn_bl.c b/drivers/video/backlight/arcxcnn_bl.c
index 7b1c0a0e6cad..060c0eef6a52 100644
--- a/drivers/video/backlight/arcxcnn_bl.c
+++ b/drivers/video/backlight/arcxcnn_bl.c
@@ -362,7 +362,7 @@ probe_err:
 	return ret;
 }
 
-static int arcxcnn_remove(struct i2c_client *cl)
+static void arcxcnn_remove(struct i2c_client *cl)
 {
 	struct arcxcnn *lp = i2c_get_clientdata(cl);
 
@@ -376,8 +376,6 @@ static int arcxcnn_remove(struct i2c_client *cl)
 	lp->bl->props.brightness = 0;
 
 	backlight_update_status(lp->bl);
-
-	return 0;
 }
 
 static const struct of_device_id arcxcnn_dt_ids[] = {
diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c
index 515184fbe33a..a506872d4396 100644
--- a/drivers/video/backlight/bd6107.c
+++ b/drivers/video/backlight/bd6107.c
@@ -175,14 +175,12 @@ static int bd6107_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int bd6107_remove(struct i2c_client *client)
+static void bd6107_remove(struct i2c_client *client)
 {
 	struct backlight_device *backlight = i2c_get_clientdata(client);
 
 	backlight->props.brightness = 0;
 	backlight_update_status(backlight);
-
-	return 0;
 }
 
 static const struct i2c_device_id bd6107_ids[] = {
diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 1d17c439430e..475f35635bf6 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -579,7 +579,7 @@ static int lm3630a_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int lm3630a_remove(struct i2c_client *client)
+static void lm3630a_remove(struct i2c_client *client)
 {
 	int rval;
 	struct lm3630a_chip *pchip = i2c_get_clientdata(client);
@@ -596,7 +596,6 @@ static int lm3630a_remove(struct i2c_client *client)
 		free_irq(pchip->irq, pchip);
 		destroy_workqueue(pchip->irqthread);
 	}
-	return 0;
 }
 
 static const struct i2c_device_id lm3630a_id[] = {
diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c
index 48c04155a5f9..6580911671a3 100644
--- a/drivers/video/backlight/lm3639_bl.c
+++ b/drivers/video/backlight/lm3639_bl.c
@@ -390,7 +390,7 @@ err_out:
 	return ret;
 }
 
-static int lm3639_remove(struct i2c_client *client)
+static void lm3639_remove(struct i2c_client *client)
 {
 	struct lm3639_chip_data *pchip = i2c_get_clientdata(client);
 
@@ -400,7 +400,6 @@ static int lm3639_remove(struct i2c_client *client)
 	led_classdev_unregister(&pchip->cdev_flash);
 	if (pchip->bled)
 		device_remove_file(&(pchip->bled->dev), &dev_attr_bled_mode);
-	return 0;
 }
 
 static const struct i2c_device_id lm3639_id[] = {
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index fc02c5c16055..bd0bdeae23a4 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -534,7 +534,7 @@ disable_supply:
 	return ret;
 }
 
-static int lp855x_remove(struct i2c_client *cl)
+static void lp855x_remove(struct i2c_client *cl)
 {
 	struct lp855x *lp = i2c_get_clientdata(cl);
 
@@ -545,8 +545,6 @@ static int lp855x_remove(struct i2c_client *cl)
 	if (lp->supply)
 		regulator_disable(lp->supply);
 	sysfs_remove_group(&lp->dev->kobj, &lp855x_attr_group);
-
-	return 0;
 }
 
 static const struct of_device_id lp855x_dt_ids[] = {
diff --git a/drivers/video/backlight/lv5207lp.c b/drivers/video/backlight/lv5207lp.c
index 1842ae9a55f8..767b800d79fa 100644
--- a/drivers/video/backlight/lv5207lp.c
+++ b/drivers/video/backlight/lv5207lp.c
@@ -124,14 +124,12 @@ static int lv5207lp_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int lv5207lp_remove(struct i2c_client *client)
+static void lv5207lp_remove(struct i2c_client *client)
 {
 	struct backlight_device *backlight = i2c_get_clientdata(client);
 
 	backlight->props.brightness = 0;
 	backlight_update_status(backlight);
-
-	return 0;
 }
 
 static const struct i2c_device_id lv5207lp_ids[] = {
diff --git a/drivers/video/backlight/mt6370-backlight.c b/drivers/video/backlight/mt6370-backlight.c
new file mode 100644
index 000000000000..623d4f2baca2
--- /dev/null
+++ b/drivers/video/backlight/mt6370-backlight.c
@@ -0,0 +1,351 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 Richtek Technology Corp.
+ *
+ * Author: ChiaEn Wu <chiaen_wu@richtek.com>
+ */
+
+#include <linux/backlight.h>
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/minmax.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+
+#define MT6370_REG_DEV_INFO		0x100
+#define MT6370_REG_BL_EN		0x1A0
+#define MT6370_REG_BL_BSTCTRL		0x1A1
+#define MT6370_REG_BL_PWM		0x1A2
+#define MT6370_REG_BL_DIM2		0x1A4
+
+#define MT6370_VENID_MASK		GENMASK(7, 4)
+#define MT6370_BL_EXT_EN_MASK		BIT(7)
+#define MT6370_BL_EN_MASK		BIT(6)
+#define MT6370_BL_CODE_MASK		BIT(0)
+#define MT6370_BL_CH_MASK		GENMASK(5, 2)
+#define MT6370_BL_CH_SHIFT		2
+#define MT6370_BL_DIM2_COMMON_MASK	GENMASK(2, 0)
+#define MT6370_BL_DIM2_COMMON_SHIFT	3
+#define MT6370_BL_DIM2_6372_MASK	GENMASK(5, 0)
+#define MT6370_BL_DIM2_6372_SHIFT	6
+#define MT6370_BL_PWM_EN_MASK		BIT(7)
+#define MT6370_BL_PWM_HYS_EN_MASK	BIT(2)
+#define MT6370_BL_PWM_HYS_SEL_MASK	GENMASK(1, 0)
+#define MT6370_BL_OVP_EN_MASK		BIT(7)
+#define MT6370_BL_OVP_SEL_MASK		GENMASK(6, 5)
+#define MT6370_BL_OVP_SEL_SHIFT		5
+#define MT6370_BL_OC_EN_MASK		BIT(3)
+#define MT6370_BL_OC_SEL_MASK		GENMASK(2, 1)
+#define MT6370_BL_OC_SEL_SHIFT		1
+
+#define MT6370_BL_PWM_HYS_TH_MIN_STEP	1
+#define MT6370_BL_PWM_HYS_TH_MAX_STEP	64
+#define MT6370_BL_OVP_MIN_UV		17000000
+#define MT6370_BL_OVP_MAX_UV		29000000
+#define MT6370_BL_OVP_STEP_UV		4000000
+#define MT6370_BL_OCP_MIN_UA		900000
+#define MT6370_BL_OCP_MAX_UA		1800000
+#define MT6370_BL_OCP_STEP_UA		300000
+#define MT6370_BL_MAX_COMMON_BRIGHTNESS	2048
+#define MT6370_BL_MAX_6372_BRIGHTNESS	16384
+#define MT6370_BL_MAX_CH		15
+
+enum {
+	MT6370_VID_COMMON = 1,
+	MT6370_VID_6372,
+};
+
+struct mt6370_priv {
+	u8 dim2_mask;
+	u8 dim2_shift;
+	int def_max_brightness;
+	struct backlight_device *bl;
+	struct device *dev;
+	struct gpio_desc *enable_gpio;
+	struct regmap *regmap;
+};
+
+static int mt6370_bl_update_status(struct backlight_device *bl_dev)
+{
+	struct mt6370_priv *priv = bl_get_data(bl_dev);
+	int brightness = backlight_get_brightness(bl_dev);
+	unsigned int enable_val;
+	u8 brightness_val[2];
+	int ret;
+
+	if (brightness) {
+		brightness_val[0] = (brightness - 1) & priv->dim2_mask;
+		brightness_val[1] = (brightness - 1) >> priv->dim2_shift;
+
+		ret = regmap_raw_write(priv->regmap, MT6370_REG_BL_DIM2,
+				       brightness_val, sizeof(brightness_val));
+		if (ret)
+			return ret;
+	}
+
+	gpiod_set_value(priv->enable_gpio, !!brightness);
+
+	enable_val = brightness ? MT6370_BL_EN_MASK : 0;
+	return regmap_update_bits(priv->regmap, MT6370_REG_BL_EN,
+				  MT6370_BL_EN_MASK, enable_val);
+}
+
+static int mt6370_bl_get_brightness(struct backlight_device *bl_dev)
+{
+	struct mt6370_priv *priv = bl_get_data(bl_dev);
+	unsigned int enable;
+	u8 brightness_val[2];
+	int brightness, ret;
+
+	ret = regmap_read(priv->regmap, MT6370_REG_BL_EN, &enable);
+	if (ret)
+		return ret;
+
+	if (!(enable & MT6370_BL_EN_MASK))
+		return 0;
+
+	ret = regmap_raw_read(priv->regmap, MT6370_REG_BL_DIM2,
+			      brightness_val, sizeof(brightness_val));
+	if (ret)
+		return ret;
+
+	brightness = brightness_val[1] << priv->dim2_shift;
+	brightness += brightness_val[0] & priv->dim2_mask;
+
+	return brightness + 1;
+}
+
+static const struct backlight_ops mt6370_bl_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = mt6370_bl_update_status,
+	.get_brightness = mt6370_bl_get_brightness,
+};
+
+static int mt6370_init_backlight_properties(struct mt6370_priv *priv,
+					    struct backlight_properties *props)
+{
+	struct device *dev = priv->dev;
+	u8 prop_val;
+	u32 brightness, ovp_uV, ocp_uA;
+	unsigned int mask, val;
+	int ret;
+
+	/* Vendor optional properties */
+	val = 0;
+	if (device_property_read_bool(dev, "mediatek,bled-pwm-enable"))
+		val |= MT6370_BL_PWM_EN_MASK;
+
+	if (device_property_read_bool(dev, "mediatek,bled-pwm-hys-enable"))
+		val |= MT6370_BL_PWM_HYS_EN_MASK;
+
+	ret = device_property_read_u8(dev,
+				      "mediatek,bled-pwm-hys-input-th-steps",
+				      &prop_val);
+	if (!ret) {
+		prop_val = clamp_val(prop_val,
+				     MT6370_BL_PWM_HYS_TH_MIN_STEP,
+				     MT6370_BL_PWM_HYS_TH_MAX_STEP);
+		prop_val = prop_val <= 1 ? 0 :
+			   prop_val <= 4 ? 1 :
+			   prop_val <= 16 ? 2 : 3;
+		val |= prop_val;
+	}
+
+	ret = regmap_update_bits(priv->regmap, MT6370_REG_BL_PWM,
+				 val, val);
+	if (ret)
+		return ret;
+
+	val = 0;
+	if (device_property_read_bool(dev, "mediatek,bled-ovp-shutdown"))
+		val |= MT6370_BL_OVP_EN_MASK;
+
+	ret = device_property_read_u32(dev, "mediatek,bled-ovp-microvolt",
+				       &ovp_uV);
+	if (!ret) {
+		ovp_uV = clamp_val(ovp_uV, MT6370_BL_OVP_MIN_UV,
+				   MT6370_BL_OVP_MAX_UV);
+		ovp_uV = DIV_ROUND_UP(ovp_uV - MT6370_BL_OVP_MIN_UV,
+				      MT6370_BL_OVP_STEP_UV);
+		val |= ovp_uV << MT6370_BL_OVP_SEL_SHIFT;
+	}
+
+	if (device_property_read_bool(dev, "mediatek,bled-ocp-shutdown"))
+		val |= MT6370_BL_OC_EN_MASK;
+
+	ret = device_property_read_u32(dev, "mediatek,bled-ocp-microamp",
+				       &ocp_uA);
+	if (!ret) {
+		ocp_uA = clamp_val(ocp_uA, MT6370_BL_OCP_MIN_UA,
+				   MT6370_BL_OCP_MAX_UA);
+		ocp_uA = DIV_ROUND_UP(ocp_uA - MT6370_BL_OCP_MIN_UA,
+				      MT6370_BL_OCP_STEP_UA);
+		val |= ocp_uA << MT6370_BL_OC_SEL_SHIFT;
+	}
+
+	ret = regmap_update_bits(priv->regmap, MT6370_REG_BL_BSTCTRL,
+				 val, val);
+	if (ret)
+		return ret;
+
+	/* Common properties */
+	ret = device_property_read_u32(dev, "max-brightness", &brightness);
+	if (ret)
+		brightness = priv->def_max_brightness;
+
+	props->max_brightness = min_t(u32, brightness, priv->def_max_brightness);
+
+	ret = device_property_read_u32(dev, "default-brightness", &brightness);
+	if (ret)
+		brightness = props->max_brightness;
+
+	props->brightness = min_t(u32, brightness, props->max_brightness);
+
+	val = 0;
+	if (device_property_read_bool(dev, "mediatek,bled-exponential-mode-enable")) {
+		val |= MT6370_BL_CODE_MASK;
+		props->scale = BACKLIGHT_SCALE_NON_LINEAR;
+	} else
+		props->scale = BACKLIGHT_SCALE_LINEAR;
+
+	ret = device_property_read_u8(dev, "mediatek,bled-channel-use",
+				      &prop_val);
+	if (ret) {
+		dev_err(dev, "mediatek,bled-channel-use DT property missing\n");
+		return ret;
+	}
+
+	if (!prop_val || prop_val > MT6370_BL_MAX_CH) {
+		dev_err(dev,
+			"No channel specified or over than upper bound (%d)\n",
+			prop_val);
+		return -EINVAL;
+	}
+
+	mask = MT6370_BL_EXT_EN_MASK | MT6370_BL_CH_MASK;
+	val |= prop_val << MT6370_BL_CH_SHIFT;
+
+	if (priv->enable_gpio)
+		val |= MT6370_BL_EXT_EN_MASK;
+
+	return regmap_update_bits(priv->regmap, MT6370_REG_BL_EN, mask, val);
+}
+
+static int mt6370_check_vendor_info(struct mt6370_priv *priv)
+{
+	/*
+	 * Because MT6372 uses 14 bits to control the brightness,
+	 * MT6370 and MT6371 use 11 bits. This function is used
+	 * to check the vendor's ID and set the relative hardware
+	 * mask, shift and default maximum brightness value that
+	 * should be used.
+	 */
+	unsigned int dev_info, hw_vid, of_vid;
+	int ret;
+
+	ret = regmap_read(priv->regmap, MT6370_REG_DEV_INFO, &dev_info);
+	if (ret)
+		return ret;
+
+	of_vid = (uintptr_t)device_get_match_data(priv->dev);
+	hw_vid = FIELD_GET(MT6370_VENID_MASK, dev_info);
+	hw_vid = (hw_vid == 0x9 || hw_vid == 0xb) ? MT6370_VID_6372 : MT6370_VID_COMMON;
+	if (hw_vid != of_vid)
+		return dev_err_probe(priv->dev, -EINVAL,
+				     "Buggy DT, wrong compatible string\n");
+
+	if (hw_vid == MT6370_VID_6372) {
+		priv->dim2_mask = MT6370_BL_DIM2_6372_MASK;
+		priv->dim2_shift = MT6370_BL_DIM2_6372_SHIFT;
+		priv->def_max_brightness = MT6370_BL_MAX_6372_BRIGHTNESS;
+	} else {
+		priv->dim2_mask = MT6370_BL_DIM2_COMMON_MASK;
+		priv->dim2_shift = MT6370_BL_DIM2_COMMON_SHIFT;
+		priv->def_max_brightness = MT6370_BL_MAX_COMMON_BRIGHTNESS;
+	}
+
+	return 0;
+}
+
+static int mt6370_bl_probe(struct platform_device *pdev)
+{
+	struct backlight_properties props = {
+		.type = BACKLIGHT_RAW,
+	};
+	struct device *dev = &pdev->dev;
+	struct mt6370_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+
+	priv->regmap = dev_get_regmap(dev->parent, NULL);
+	if (!priv->regmap)
+		return dev_err_probe(dev, -ENODEV, "Failed to get regmap\n");
+
+	ret = mt6370_check_vendor_info(priv);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to check vendor info\n");
+
+	priv->enable_gpio = devm_gpiod_get_optional(dev, "enable",
+						    GPIOD_OUT_HIGH);
+	if (IS_ERR(priv->enable_gpio))
+		return dev_err_probe(dev, PTR_ERR(priv->enable_gpio),
+				     "Failed to get 'enable' gpio\n");
+
+	ret = mt6370_init_backlight_properties(priv, &props);
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "Failed to init backlight properties\n");
+
+	priv->bl = devm_backlight_device_register(dev, pdev->name, dev, priv,
+						  &mt6370_bl_ops, &props);
+	if (IS_ERR(priv->bl))
+		return dev_err_probe(dev, PTR_ERR(priv->bl),
+				     "Failed to register backlight\n");
+
+	backlight_update_status(priv->bl);
+	platform_set_drvdata(pdev, priv);
+
+	return 0;
+}
+
+static int mt6370_bl_remove(struct platform_device *pdev)
+{
+	struct mt6370_priv *priv = platform_get_drvdata(pdev);
+	struct backlight_device *bl_dev = priv->bl;
+
+	bl_dev->props.brightness = 0;
+	backlight_update_status(priv->bl);
+
+	return 0;
+}
+
+static const struct of_device_id mt6370_bl_of_match[] = {
+	{ .compatible = "mediatek,mt6370-backlight", .data = (void *)MT6370_VID_COMMON },
+	{ .compatible = "mediatek,mt6372-backlight", .data = (void *)MT6370_VID_6372 },
+	{}
+};
+MODULE_DEVICE_TABLE(of, mt6370_bl_of_match);
+
+static struct platform_driver mt6370_bl_driver = {
+	.driver = {
+		.name = "mt6370-backlight",
+		.of_match_table = mt6370_bl_of_match,
+	},
+	.probe = mt6370_bl_probe,
+	.remove = mt6370_bl_remove,
+};
+module_platform_driver(mt6370_bl_driver);
+
+MODULE_AUTHOR("ChiaEn Wu <chiaen_wu@richtek.com>");
+MODULE_DESCRIPTION("MediaTek MT6370 Backlight Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index 6df6fcd132e3..f55b3d616a87 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -121,12 +121,11 @@ err_reg:
 	return ret;
 }
 
-static int tosa_bl_remove(struct i2c_client *client)
+static void tosa_bl_remove(struct i2c_client *client)
 {
 	struct tosa_bl_data *data = i2c_get_clientdata(client);
 
 	data->bl = NULL;
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index bd4dc97d4d34..db568f67e4dc 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -290,7 +290,7 @@ static char default_sti_path[21] __read_mostly;
 static int __init sti_setup(char *str)
 {
 	if (str)
-		strlcpy (default_sti_path, str, sizeof (default_sti_path));
+		strscpy(default_sti_path, str, sizeof(default_sti_path));
 	
 	return 1;
 }
diff --git a/drivers/video/fbdev/arkfb.c b/drivers/video/fbdev/arkfb.c
index a317d9fe1d67..5f8fec9e5fd4 100644
--- a/drivers/video/fbdev/arkfb.c
+++ b/drivers/video/fbdev/arkfb.c
@@ -318,14 +318,6 @@ struct dac_info
 	void *data;
 };
 
-
-static inline u8 dac_read_reg(struct dac_info *info, u8 reg)
-{
-	u8 code[2] = {reg, 0};
-	info->dac_read_regs(info->data, code, 1);
-	return code[1];
-}
-
 static inline void dac_read_regs(struct dac_info *info, u8 *code, int count)
 {
 	info->dac_read_regs(info->data, code, count);
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index 4804b6e9f3f4..b3463d137152 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3896,7 +3896,7 @@ static int __init atyfb_setup(char *options)
 			 && (!strncmp(this_opt, "Mach64:", 7))) {
 			static unsigned char m64_num;
 			static char mach64_str[80];
-			strlcpy(mach64_str, this_opt + 7, sizeof(mach64_str));
+			strscpy(mach64_str, this_opt + 7, sizeof(mach64_str));
 			if (!store_video_par(mach64_str, m64_num)) {
 				m64_num++;
 				mach64_count = m64_num;
diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c
index 0a8199985d52..8b28c9bddd97 100644
--- a/drivers/video/fbdev/aty/radeon_base.c
+++ b/drivers/video/fbdev/aty/radeon_base.c
@@ -1981,7 +1981,7 @@ static int radeon_set_fbinfo(struct radeonfb_info *rinfo)
 	info->screen_base = rinfo->fb_base;
 	info->screen_size = rinfo->mapped_vram;
 	/* Fill fix common fields */
-	strlcpy(info->fix.id, rinfo->name, sizeof(info->fix.id));
+	strscpy(info->fix.id, rinfo->name, sizeof(info->fix.id));
         info->fix.smem_start = rinfo->fb_base_phys;
         info->fix.smem_len = rinfo->video_ram;
         info->fix.type = FB_TYPE_PACKED_PIXELS;
@@ -2095,34 +2095,34 @@ static void radeon_identify_vram(struct radeonfb_info *rinfo)
 	u32 tmp;
 
 	/* framebuffer size */
-        if ((rinfo->family == CHIP_FAMILY_RS100) ||
+	if ((rinfo->family == CHIP_FAMILY_RS100) ||
             (rinfo->family == CHIP_FAMILY_RS200) ||
             (rinfo->family == CHIP_FAMILY_RS300) ||
             (rinfo->family == CHIP_FAMILY_RC410) ||
             (rinfo->family == CHIP_FAMILY_RS400) ||
 	    (rinfo->family == CHIP_FAMILY_RS480) ) {
-          u32 tom = INREG(NB_TOM);
-          tmp = ((((tom >> 16) - (tom & 0xffff) + 1) << 6) * 1024);
-
- 		radeon_fifo_wait(6);
-          OUTREG(MC_FB_LOCATION, tom);
-          OUTREG(DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
-          OUTREG(CRTC2_DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
-          OUTREG(OV0_BASE_ADDR, (tom & 0xffff) << 16);
-
-          /* This is supposed to fix the crtc2 noise problem. */
-          OUTREG(GRPH2_BUFFER_CNTL, INREG(GRPH2_BUFFER_CNTL) & ~0x7f0000);
-
-          if ((rinfo->family == CHIP_FAMILY_RS100) ||
-              (rinfo->family == CHIP_FAMILY_RS200)) {
-             /* This is to workaround the asic bug for RMX, some versions
-                of BIOS doesn't have this register initialized correctly.
-             */
-             OUTREGP(CRTC_MORE_CNTL, CRTC_H_CUTOFF_ACTIVE_EN,
-                     ~CRTC_H_CUTOFF_ACTIVE_EN);
-          }
-        } else {
-          tmp = INREG(CNFG_MEMSIZE);
+		u32 tom = INREG(NB_TOM);
+
+		tmp = ((((tom >> 16) - (tom & 0xffff) + 1) << 6) * 1024);
+		radeon_fifo_wait(6);
+		OUTREG(MC_FB_LOCATION, tom);
+		OUTREG(DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
+		OUTREG(CRTC2_DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
+		OUTREG(OV0_BASE_ADDR, (tom & 0xffff) << 16);
+
+		/* This is supposed to fix the crtc2 noise problem. */
+		OUTREG(GRPH2_BUFFER_CNTL, INREG(GRPH2_BUFFER_CNTL) & ~0x7f0000);
+
+		if ((rinfo->family == CHIP_FAMILY_RS100) ||
+		    (rinfo->family == CHIP_FAMILY_RS200)) {
+			/* This is to workaround the asic bug for RMX, some versions
+			 * of BIOS doesn't have this register initialized correctly.
+			 */
+			OUTREGP(CRTC_MORE_CNTL, CRTC_H_CUTOFF_ACTIVE_EN,
+				~CRTC_H_CUTOFF_ACTIVE_EN);
+		}
+	} else {
+		tmp = INREG(CNFG_MEMSIZE);
         }
 
 	/* mem size is bits [28:0], mask off the rest */
diff --git a/drivers/video/fbdev/bw2.c b/drivers/video/fbdev/bw2.c
index e7702fe1fe7d..6403ae07970d 100644
--- a/drivers/video/fbdev/bw2.c
+++ b/drivers/video/fbdev/bw2.c
@@ -182,7 +182,7 @@ static int bw2_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 
 static void bw2_init_fix(struct fb_info *info, int linebytes)
 {
-	strlcpy(info->fix.id, "bwtwo", sizeof(info->fix.id));
+	strscpy(info->fix.id, "bwtwo", sizeof(info->fix.id));
 
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
 	info->fix.visual = FB_VISUAL_MONO01;
diff --git a/drivers/video/fbdev/chipsfb.c b/drivers/video/fbdev/chipsfb.c
index 5ad64714d39e..f1c1c95c1fdf 100644
--- a/drivers/video/fbdev/chipsfb.c
+++ b/drivers/video/fbdev/chipsfb.c
@@ -435,6 +435,7 @@ static int chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
  err_release_fb:
 	framebuffer_release(p);
  err_disable:
+	pci_disable_device(dp);
  err_out:
 	return rc;
 }
diff --git a/drivers/video/fbdev/cirrusfb.c b/drivers/video/fbdev/cirrusfb.c
index 851367e159c0..b08bee43779a 100644
--- a/drivers/video/fbdev/cirrusfb.c
+++ b/drivers/video/fbdev/cirrusfb.c
@@ -2000,7 +2000,7 @@ static int cirrusfb_set_fbinfo(struct fb_info *info)
 	}
 
 	/* Fill fix common fields */
-	strlcpy(info->fix.id, cirrusfb_board_info[cinfo->btype].name,
+	strscpy(info->fix.id, cirrusfb_board_info[cinfo->btype].name,
 		sizeof(info->fix.id));
 
 	/* monochrome: only 1 memory plane */
diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c
index 771ce1f76951..a1061c2f1640 100644
--- a/drivers/video/fbdev/clps711x-fb.c
+++ b/drivers/video/fbdev/clps711x-fb.c
@@ -326,7 +326,7 @@ static int clps711x_fb_probe(struct platform_device *pdev)
 	info->var.vmode = FB_VMODE_NONINTERLACED;
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
 	info->fix.accel = FB_ACCEL_NONE;
-	strlcpy(info->fix.id, CLPS711X_FB_NAME, sizeof(info->fix.id));
+	strscpy(info->fix.id, CLPS711X_FB_NAME, sizeof(info->fix.id));
 	fb_videomode_to_var(&info->var, &cfb->mode);
 
 	ret = fb_alloc_cmap(&info->cmap, BIT(CLPS711X_FB_BPP_MAX), 0);
diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c
index aba46118b208..6bbcd9fc864e 100644
--- a/drivers/video/fbdev/controlfb.c
+++ b/drivers/video/fbdev/controlfb.c
@@ -108,13 +108,6 @@ static inline int PAR_EQUAL(struct fb_par_control *x, struct fb_par_control *y)
 	return (!DIRTY(cmode) && !DIRTY(xres) && !DIRTY(yres)
 		&& !DIRTY(vxres) && !DIRTY(vyres));
 }
-static inline int VAR_MATCH(struct fb_var_screeninfo *x, struct fb_var_screeninfo *y)
-{
-	return (!DIRTY(bits_per_pixel) && !DIRTY(xres)
-		&& !DIRTY(yres) && !DIRTY(xres_virtual)
-		&& !DIRTY(yres_virtual)
-		&& !DIRTY_CMAP(red) && !DIRTY_CMAP(green) && !DIRTY_CMAP(blue));
-}
 
 struct fb_info_control {
 	struct fb_info		info;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index cf9ac4da0a82..098b62f7b701 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -412,7 +412,7 @@ static int __init fb_console_setup(char *this_opt)
 
 	while ((options = strsep(&this_opt, ",")) != NULL) {
 		if (!strncmp(options, "font:", 5)) {
-			strlcpy(fontname, options + 5, sizeof(fontname));
+			strscpy(fontname, options + 5, sizeof(fontname));
 			continue;
 		}
 		
@@ -2401,15 +2401,21 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int charcount,
 	struct fb_info *info = fbcon_info_from_console(vc->vc_num);
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fbcon_display *p = &fb_display[vc->vc_num];
-	int resize;
+	int resize, ret, old_userfont, old_width, old_height, old_charcount;
 	char *old_data = NULL;
 
 	resize = (w != vc->vc_font.width) || (h != vc->vc_font.height);
 	if (p->userfont)
 		old_data = vc->vc_font.data;
 	vc->vc_font.data = (void *)(p->fontdata = data);
+	old_userfont = p->userfont;
 	if ((p->userfont = userfont))
 		REFCOUNT(data)++;
+
+	old_width = vc->vc_font.width;
+	old_height = vc->vc_font.height;
+	old_charcount = vc->vc_font.charcount;
+
 	vc->vc_font.width = w;
 	vc->vc_font.height = h;
 	vc->vc_font.charcount = charcount;
@@ -2425,7 +2431,9 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int charcount,
 		rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
 		cols /= w;
 		rows /= h;
-		vc_resize(vc, cols, rows);
+		ret = vc_resize(vc, cols, rows);
+		if (ret)
+			goto err_out;
 	} else if (con_is_visible(vc)
 		   && vc->vc_mode == KD_TEXT) {
 		fbcon_clear_margins(vc, 0);
@@ -2435,6 +2443,21 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int charcount,
 	if (old_data && (--REFCOUNT(old_data) == 0))
 		kfree(old_data - FONT_EXTRA_WORDS * sizeof(int));
 	return 0;
+
+err_out:
+	p->fontdata = old_data;
+	vc->vc_font.data = (void *)old_data;
+
+	if (userfont) {
+		p->userfont = old_userfont;
+		REFCOUNT(data)--;
+	}
+
+	vc->vc_font.width = old_width;
+	vc->vc_font.height = old_height;
+	vc->vc_font.charcount = old_charcount;
+
+	return ret;
 }
 
 /*
diff --git a/drivers/video/fbdev/core/fbsysfs.c b/drivers/video/fbdev/core/fbsysfs.c
index c2a60b187467..4d7f63892dcc 100644
--- a/drivers/video/fbdev/core/fbsysfs.c
+++ b/drivers/video/fbdev/core/fbsysfs.c
@@ -84,6 +84,10 @@ void framebuffer_release(struct fb_info *info)
 	if (WARN_ON(refcount_read(&info->count)))
 		return;
 
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
+	mutex_destroy(&info->bl_curve_mutex);
+#endif
+
 	kfree(info->apertures);
 	kfree(info);
 }
diff --git a/drivers/video/fbdev/cyber2000fb.c b/drivers/video/fbdev/cyber2000fb.c
index be7bcf95c96a..585af90a68a5 100644
--- a/drivers/video/fbdev/cyber2000fb.c
+++ b/drivers/video/fbdev/cyber2000fb.c
@@ -1135,7 +1135,7 @@ int cyber2000fb_attach(struct cyberpro_info *info, int idx)
 		info->fb_size	      = int_cfb_info->fb.fix.smem_len;
 		info->info	      = int_cfb_info;
 
-		strlcpy(info->dev_name, int_cfb_info->fb.fix.id,
+		strscpy(info->dev_name, int_cfb_info->fb.fix.id,
 			sizeof(info->dev_name));
 	}
 
@@ -1230,7 +1230,7 @@ static int cyber2000fb_ddc_getsda(void *data)
 
 static int cyber2000fb_setup_ddc_bus(struct cfb_info *cfb)
 {
-	strlcpy(cfb->ddc_adapter.name, cfb->fb.fix.id,
+	strscpy(cfb->ddc_adapter.name, cfb->fb.fix.id,
 		sizeof(cfb->ddc_adapter.name));
 	cfb->ddc_adapter.owner		= THIS_MODULE;
 	cfb->ddc_adapter.class		= I2C_CLASS_DDC;
@@ -1305,7 +1305,7 @@ static int cyber2000fb_i2c_getscl(void *data)
 
 static int cyber2000fb_i2c_register(struct cfb_info *cfb)
 {
-	strlcpy(cfb->i2c_adapter.name, cfb->fb.fix.id,
+	strscpy(cfb->i2c_adapter.name, cfb->fb.fix.id,
 		sizeof(cfb->i2c_adapter.name));
 	cfb->i2c_adapter.owner = THIS_MODULE;
 	cfb->i2c_adapter.algo_data = &cfb->i2c_algo;
@@ -1501,7 +1501,7 @@ static int cyber2000fb_setup(char *options)
 		if (strncmp(opt, "font:", 5) == 0) {
 			static char default_font_storage[40];
 
-			strlcpy(default_font_storage, opt + 5,
+			strscpy(default_font_storage, opt + 5,
 				sizeof(default_font_storage));
 			default_font = default_font_storage;
 			continue;
diff --git a/drivers/video/fbdev/ffb.c b/drivers/video/fbdev/ffb.c
index b3d580e57221..7cba3969a970 100644
--- a/drivers/video/fbdev/ffb.c
+++ b/drivers/video/fbdev/ffb.c
@@ -883,7 +883,7 @@ static void ffb_init_fix(struct fb_info *info)
 	} else
 		ffb_type_name = "Elite 3D";
 
-	strlcpy(info->fix.id, ffb_type_name, sizeof(info->fix.id));
+	strscpy(info->fix.id, ffb_type_name, sizeof(info->fix.id));
 
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
 	info->fix.visual = FB_VISUAL_TRUECOLOR;
diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c
index 6b4d5a7f3e15..1582c718329c 100644
--- a/drivers/video/fbdev/gbefb.c
+++ b/drivers/video/fbdev/gbefb.c
@@ -1072,17 +1072,12 @@ static ssize_t gbefb_show_rev(struct device *device, struct device_attribute *at
 
 static DEVICE_ATTR(revision, S_IRUGO, gbefb_show_rev, NULL);
 
-static void gbefb_remove_sysfs(struct device *dev)
-{
-	device_remove_file(dev, &dev_attr_size);
-	device_remove_file(dev, &dev_attr_revision);
-}
-
-static void gbefb_create_sysfs(struct device *dev)
-{
-	device_create_file(dev, &dev_attr_size);
-	device_create_file(dev, &dev_attr_revision);
-}
+static struct attribute *gbefb_attrs[] = {
+	&dev_attr_size.attr,
+	&dev_attr_revision.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(gbefb);
 
 /*
  * Initialization
@@ -1221,7 +1216,6 @@ static int gbefb_probe(struct platform_device *p_dev)
 	}
 
 	platform_set_drvdata(p_dev, info);
-	gbefb_create_sysfs(&p_dev->dev);
 
 	fb_info(info, "%s rev %d @ 0x%08x using %dkB memory\n",
 		info->fix.id, gbe_revision, (unsigned)GBE_BASE,
@@ -1248,7 +1242,6 @@ static int gbefb_remove(struct platform_device* p_dev)
 	gbe_turn_off();
 	arch_phys_wc_del(par->wc_cookie);
 	release_mem_region(GBE_BASE, sizeof(struct sgi_gbe));
-	gbefb_remove_sysfs(&p_dev->dev);
 	framebuffer_release(info);
 
 	return 0;
@@ -1259,6 +1252,7 @@ static struct platform_driver gbefb_driver = {
 	.remove = gbefb_remove,
 	.driver	= {
 		.name = "gbefb",
+		.dev_groups	= gbefb_groups,
 	},
 };
 
diff --git a/drivers/video/fbdev/geode/gx1fb_core.c b/drivers/video/fbdev/geode/gx1fb_core.c
index 4cac7e3bb1a0..1514c653a84f 100644
--- a/drivers/video/fbdev/geode/gx1fb_core.c
+++ b/drivers/video/fbdev/geode/gx1fb_core.c
@@ -415,13 +415,13 @@ static void __init gx1fb_setup(char *options)
 			continue;
 
 		if (!strncmp(this_opt, "mode:", 5))
-			strlcpy(mode_option, this_opt + 5, sizeof(mode_option));
+			strscpy(mode_option, this_opt + 5, sizeof(mode_option));
 		else if (!strncmp(this_opt, "crt:", 4))
 			crt_option = !!simple_strtoul(this_opt + 4, NULL, 0);
 		else if (!strncmp(this_opt, "panel:", 6))
-			strlcpy(panel_option, this_opt + 6, sizeof(panel_option));
+			strscpy(panel_option, this_opt + 6, sizeof(panel_option));
 		else
-			strlcpy(mode_option, this_opt, sizeof(mode_option));
+			strscpy(mode_option, this_opt, sizeof(mode_option));
 	}
 }
 #endif
diff --git a/drivers/video/fbdev/gxt4500.c b/drivers/video/fbdev/gxt4500.c
index f0d36a4fdaef..0dcef4bec8d7 100644
--- a/drivers/video/fbdev/gxt4500.c
+++ b/drivers/video/fbdev/gxt4500.c
@@ -655,7 +655,7 @@ static int gxt4500_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	cardtype = ent->driver_data;
 	par->refclk_ps = cardinfo[cardtype].refclk_ps;
 	info->fix = gxt4500_fix;
-	strlcpy(info->fix.id, cardinfo[cardtype].cardname,
+	strscpy(info->fix.id, cardinfo[cardtype].cardname,
 		sizeof(info->fix.id));
 	info->pseudo_palette = par->pseudo_palette;
 
diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index a0e1d70b90d7..072ce07ba9e0 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -75,10 +75,6 @@
 #define SYNTHVID_DEPTH_WIN8 32
 #define SYNTHVID_FB_SIZE_WIN8 (8 * 1024 * 1024)
 
-#define PCI_VENDOR_ID_MICROSOFT 0x1414
-#define PCI_DEVICE_ID_HYPERV_VIDEO 0x5353
-
-
 enum pipe_msg_type {
 	PIPE_MSG_INVALID,
 	PIPE_MSG_DATA,
diff --git a/drivers/video/fbdev/i740fb.c b/drivers/video/fbdev/i740fb.c
index 199f786f9eed..b795f6503cb6 100644
--- a/drivers/video/fbdev/i740fb.c
+++ b/drivers/video/fbdev/i740fb.c
@@ -160,7 +160,7 @@ static int i740fb_setup_ddc_bus(struct fb_info *info)
 {
 	struct i740fb_par *par = info->par;
 
-	strlcpy(par->ddc_adapter.name, info->fix.id,
+	strscpy(par->ddc_adapter.name, info->fix.id,
 		sizeof(par->ddc_adapter.name));
 	par->ddc_adapter.owner		= THIS_MODULE;
 	par->ddc_adapter.class		= I2C_CLASS_DDC;
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index d97d7456d15a..51fde1b2a793 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -681,7 +681,7 @@ static int imxfb_init_fbinfo(struct platform_device *pdev)
 
 	fbi->devtype = pdev->id_entry->driver_data;
 
-	strlcpy(info->fix.id, IMX_NAME, sizeof(info->fix.id));
+	strscpy(info->fix.id, IMX_NAME, sizeof(info->fix.id));
 
 	info->fix.type			= FB_TYPE_PACKED_PIXELS;
 	info->fix.type_aux		= 0;
@@ -972,7 +972,6 @@ static int imxfb_probe(struct platform_device *pdev)
 
 	fbi->regs = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(fbi->regs)) {
-		dev_err(&pdev->dev, "Cannot map frame buffer registers\n");
 		ret = PTR_ERR(fbi->regs);
 		goto failed_ioremap;
 	}
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
index 3e26346c05a2..775d34115e2d 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.c
+++ b/drivers/video/fbdev/matrox/matroxfb_base.c
@@ -2388,9 +2388,9 @@ static int __init matroxfb_setup(char *options) {
 		else if (!strncmp(this_opt, "mem:", 4))
 			mem = simple_strtoul(this_opt+4, NULL, 0);
 		else if (!strncmp(this_opt, "mode:", 5))
-			strlcpy(videomode, this_opt+5, sizeof(videomode));
+			strscpy(videomode, this_opt + 5, sizeof(videomode));
 		else if (!strncmp(this_opt, "outputs:", 8))
-			strlcpy(outputs, this_opt+8, sizeof(outputs));
+			strscpy(outputs, this_opt + 8, sizeof(outputs));
 		else if (!strncmp(this_opt, "dfp:", 4)) {
 			dfp_type = simple_strtoul(this_opt+4, NULL, 0);
 			dfp = 1;
@@ -2460,7 +2460,7 @@ static int __init matroxfb_setup(char *options) {
 			else if (!strcmp(this_opt, "dfp"))
 				dfp = value;
 			else {
-				strlcpy(videomode, this_opt, sizeof(videomode));
+				strscpy(videomode, this_opt, sizeof(videomode));
 			}
 		}
 	}
diff --git a/drivers/video/fbdev/matrox/matroxfb_maven.c b/drivers/video/fbdev/matrox/matroxfb_maven.c
index 9a98c4a6ba33..f2e02958673d 100644
--- a/drivers/video/fbdev/matrox/matroxfb_maven.c
+++ b/drivers/video/fbdev/matrox/matroxfb_maven.c
@@ -1276,11 +1276,10 @@ ERROR0:;
 	return err;
 }
 
-static int maven_remove(struct i2c_client *client)
+static void maven_remove(struct i2c_client *client)
 {
 	maven_shutdown_client(client);
 	kfree(i2c_get_clientdata(client));
-	return 0;
 }
 
 static const struct i2c_device_id maven_id[] = {
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
index 96800c9c9cd9..90c79e8c1157 100644
--- a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
+++ b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
@@ -693,7 +693,7 @@ static int of_platform_mb862xx_probe(struct platform_device *ofdev)
 	par->dev = dev;
 
 	par->irq = irq_of_parse_and_map(np, 0);
-	if (par->irq == NO_IRQ) {
+	if (!par->irq) {
 		dev_err(dev, "failed to map irq\n");
 		ret = -ENODEV;
 		goto fbrel;
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index dfb4ddc45701..17cda5765683 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -1642,15 +1642,13 @@ static int omapfb_do_probe(struct platform_device *pdev,
 		goto cleanup;
 	}
 	fbdev->int_irq = platform_get_irq(pdev, 0);
-	if (!fbdev->int_irq) {
-		dev_err(&pdev->dev, "unable to get irq\n");
+	if (fbdev->int_irq < 0) {
 		r = ENXIO;
 		goto cleanup;
 	}
 
 	fbdev->ext_irq = platform_get_irq(pdev, 1);
-	if (!fbdev->ext_irq) {
-		dev_err(&pdev->dev, "unable to get irq\n");
+	if (fbdev->ext_irq < 0) {
 		r = ENXIO;
 		goto cleanup;
 	}
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
index b2d6e6df2161..92fb6b7e1f68 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
@@ -519,11 +519,9 @@ int dispc_runtime_get(void)
 
 	DSSDBG("dispc_runtime_get\n");
 
-	r = pm_runtime_get_sync(&dispc.pdev->dev);
-	if (WARN_ON(r < 0)) {
-		pm_runtime_put_sync(&dispc.pdev->dev);
+	r = pm_runtime_resume_and_get(&dispc.pdev->dev);
+	if (WARN_ON(r < 0))
 		return r;
-	}
 	return 0;
 }
 EXPORT_SYMBOL(dispc_runtime_get);
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
index d43b081d592f..54b0f034c2ed 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
@@ -1136,11 +1136,9 @@ static int dsi_runtime_get(struct platform_device *dsidev)
 
 	DSSDBG("dsi_runtime_get\n");
 
-	r = pm_runtime_get_sync(&dsi->pdev->dev);
-	if (WARN_ON(r < 0)) {
-		pm_runtime_put_sync(&dsi->pdev->dev);
+	r = pm_runtime_resume_and_get(&dsi->pdev->dev);
+	if (WARN_ON(r < 0))
 		return r;
-	}
 	return 0;
 }
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss.c b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
index 45b9d3cf3860..335e0af4eec1 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
@@ -767,11 +767,9 @@ int dss_runtime_get(void)
 
 	DSSDBG("dss_runtime_get\n");
 
-	r = pm_runtime_get_sync(&dss.pdev->dev);
-	if (WARN_ON(r < 0)) {
-		pm_runtime_put_sync(&dss.pdev->dev);
+	r = pm_runtime_resume_and_get(&dss.pdev->dev);
+	if (WARN_ON(r < 0))
 		return r;
-	}
 	return 0;
 }
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c
index 800bd108e834..0f39612e002e 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c
@@ -38,11 +38,9 @@ static int hdmi_runtime_get(void)
 
 	DSSDBG("hdmi_runtime_get\n");
 
-	r = pm_runtime_get_sync(&hdmi.pdev->dev);
-	if (WARN_ON(r < 0)) {
-		pm_runtime_put_sync(&hdmi.pdev->dev);
+	r = pm_runtime_resume_and_get(&hdmi.pdev->dev);
+	if (WARN_ON(r < 0))
 		return r;
-	}
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c
index 2c03608addcd..bfccc2cb917a 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c
@@ -42,11 +42,9 @@ static int hdmi_runtime_get(void)
 
 	DSSDBG("hdmi_runtime_get\n");
 
-	r = pm_runtime_get_sync(&hdmi.pdev->dev);
-	if (WARN_ON(r < 0)) {
-		pm_runtime_put_sync(&hdmi.pdev->dev);
+	r = pm_runtime_resume_and_get(&hdmi.pdev->dev);
+	if (WARN_ON(r < 0))
 		return r;
-	}
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/venc.c b/drivers/video/fbdev/omap2/omapfb/dss/venc.c
index 905d642ff9ed..78a7309d25dd 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/venc.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/venc.c
@@ -347,11 +347,9 @@ static int venc_runtime_get(void)
 
 	DSSDBG("venc_runtime_get\n");
 
-	r = pm_runtime_get_sync(&venc.pdev->dev);
-	if (WARN_ON(r < 0)) {
-		pm_runtime_put_sync(&venc.pdev->dev);
+	r = pm_runtime_resume_and_get(&venc.pdev->dev);
+	if (WARN_ON(r < 0))
 		return r;
-	}
 	return 0;
 }
 
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
index afa688e754b9..5ccddcfce722 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
@@ -1331,7 +1331,7 @@ static void clear_fb_info(struct fb_info *fbi)
 {
 	memset(&fbi->var, 0, sizeof(fbi->var));
 	memset(&fbi->fix, 0, sizeof(fbi->fix));
-	strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
+	strscpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
 }
 
 static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
diff --git a/drivers/video/fbdev/pm2fb.c b/drivers/video/fbdev/pm2fb.c
index bc80d8498aeb..7da715d31a93 100644
--- a/drivers/video/fbdev/pm2fb.c
+++ b/drivers/video/fbdev/pm2fb.c
@@ -618,6 +618,11 @@ static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 		return -EINVAL;
 	}
 
+	if (!var->pixclock) {
+		DPRINTK("pixclock is zero\n");
+		return -EINVAL;
+	}
+
 	if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) {
 		DPRINTK("pixclock too high (%ldKHz)\n",
 			PICOS2KHZ(var->pixclock));
diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index e943300d23e8..d5d0bbd39213 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -640,7 +640,7 @@ static int pxa168fb_probe(struct platform_device *pdev)
 	info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK |
 		      FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
 	info->node = -1;
-	strlcpy(info->fix.id, mi->id, 16);
+	strscpy(info->fix.id, mi->id, 16);
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
 	info->fix.type_aux = 0;
 	info->fix.xpanstep = 0;
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index 66cfc3e9d3cf..696ac5431180 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -2042,7 +2042,7 @@ static int __init pxafb_setup_options(void)
 		return -ENODEV;
 
 	if (options)
-		strlcpy(g_options, options, sizeof(g_options));
+		strscpy(g_options, options, sizeof(g_options));
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/s3fb.c b/drivers/video/fbdev/s3fb.c
index 1882408b2d13..7713274bd04c 100644
--- a/drivers/video/fbdev/s3fb.c
+++ b/drivers/video/fbdev/s3fb.c
@@ -249,7 +249,7 @@ static int s3fb_setup_ddc_bus(struct fb_info *info)
 {
 	struct s3fb_info *par = info->par;
 
-	strlcpy(par->ddc_adapter.name, info->fix.id,
+	strscpy(par->ddc_adapter.name, info->fix.id,
 		sizeof(par->ddc_adapter.name));
 	par->ddc_adapter.owner		= THIS_MODULE;
 	par->ddc_adapter.class		= I2C_CLASS_DDC;
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index cf2a90ecd64e..e770b4a356b5 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -355,7 +355,7 @@ static int simplefb_regulators_get(struct simplefb_par *par,
 		if (!p || p == prop->name)
 			continue;
 
-		strlcpy(name, prop->name,
+		strscpy(name, prop->name,
 			strlen(prop->name) - strlen(SUPPLY_SUFFIX) + 1);
 		regulator = devm_regulator_get_optional(&pdev->dev, name);
 		if (IS_ERR(regulator)) {
diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c
index 7114c5c17c91..1c197c3f9538 100644
--- a/drivers/video/fbdev/sis/sis_main.c
+++ b/drivers/video/fbdev/sis/sis_main.c
@@ -650,37 +650,37 @@ sisfb_validate_mode(struct sis_video_info *ivideo, int myindex, u32 vbflags)
 	u16 xres=0, yres, myres;
 
 #ifdef CONFIG_FB_SIS_300
-	if(ivideo->sisvga_engine == SIS_300_VGA) {
-		if(!(sisbios_mode[myindex].chipset & MD_SIS300))
+	if (ivideo->sisvga_engine == SIS_300_VGA) {
+		if (!(sisbios_mode[myindex].chipset & MD_SIS300))
 			return -1 ;
 	}
 #endif
 #ifdef CONFIG_FB_SIS_315
-	if(ivideo->sisvga_engine == SIS_315_VGA) {
-		if(!(sisbios_mode[myindex].chipset & MD_SIS315))
+	if (ivideo->sisvga_engine == SIS_315_VGA) {
+		if (!(sisbios_mode[myindex].chipset & MD_SIS315))
 			return -1;
 	}
 #endif
 
 	myres = sisbios_mode[myindex].yres;
 
-	switch(vbflags & VB_DISPTYPE_DISP2) {
+	switch (vbflags & VB_DISPTYPE_DISP2) {
 
 	case CRT2_LCD:
 		xres = ivideo->lcdxres; yres = ivideo->lcdyres;
 
-		if((ivideo->SiS_Pr.SiS_CustomT != CUT_PANEL848) &&
-		   (ivideo->SiS_Pr.SiS_CustomT != CUT_PANEL856)) {
-			if(sisbios_mode[myindex].xres > xres)
+		if ((ivideo->SiS_Pr.SiS_CustomT != CUT_PANEL848) &&
+		    (ivideo->SiS_Pr.SiS_CustomT != CUT_PANEL856)) {
+			if (sisbios_mode[myindex].xres > xres)
 				return -1;
-			if(myres > yres)
+			if (myres > yres)
 				return -1;
 		}
 
-		if(ivideo->sisfb_fstn) {
-			if(sisbios_mode[myindex].xres == 320) {
-				if(myres == 240) {
-					switch(sisbios_mode[myindex].mode_no[1]) {
+		if (ivideo->sisfb_fstn) {
+			if (sisbios_mode[myindex].xres == 320) {
+				if (myres == 240) {
+					switch (sisbios_mode[myindex].mode_no[1]) {
 						case 0x50: myindex = MODE_FSTN_8;  break;
 						case 0x56: myindex = MODE_FSTN_16; break;
 						case 0x53: return -1;
@@ -689,7 +689,7 @@ sisfb_validate_mode(struct sis_video_info *ivideo, int myindex, u32 vbflags)
 			}
 		}
 
-		if(SiS_GetModeID_LCD(ivideo->sisvga_engine, vbflags, sisbios_mode[myindex].xres,
+		if (SiS_GetModeID_LCD(ivideo->sisvga_engine, vbflags, sisbios_mode[myindex].xres,
 			 	sisbios_mode[myindex].yres, 0, ivideo->sisfb_fstn,
 			 	ivideo->SiS_Pr.SiS_CustomT, xres, yres, ivideo->vbflags2) < 0x14) {
 			return -1;
@@ -697,14 +697,14 @@ sisfb_validate_mode(struct sis_video_info *ivideo, int myindex, u32 vbflags)
 		break;
 
 	case CRT2_TV:
-		if(SiS_GetModeID_TV(ivideo->sisvga_engine, vbflags, sisbios_mode[myindex].xres,
+		if (SiS_GetModeID_TV(ivideo->sisvga_engine, vbflags, sisbios_mode[myindex].xres,
 				sisbios_mode[myindex].yres, 0, ivideo->vbflags2) < 0x14) {
 			return -1;
 		}
 		break;
 
 	case CRT2_VGA:
-		if(SiS_GetModeID_VGA2(ivideo->sisvga_engine, vbflags, sisbios_mode[myindex].xres,
+		if (SiS_GetModeID_VGA2(ivideo->sisvga_engine, vbflags, sisbios_mode[myindex].xres,
 				sisbios_mode[myindex].yres, 0, ivideo->vbflags2) < 0x14) {
 			return -1;
 		}
@@ -1873,7 +1873,7 @@ sisfb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
 
 	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 
-	strlcpy(fix->id, ivideo->myid, sizeof(fix->id));
+	strscpy(fix->id, ivideo->myid, sizeof(fix->id));
 
 	mutex_lock(&info->mm_lock);
 	fix->smem_start  = ivideo->video_base + ivideo->video_offset;
@@ -2205,82 +2205,88 @@ static bool sisfb_test_DDC1(struct sis_video_info *ivideo)
 
 static void sisfb_sense_crt1(struct sis_video_info *ivideo)
 {
-    bool mustwait = false;
-    u8  sr1F, cr17;
+	bool mustwait = false;
+	u8  sr1F, cr17;
 #ifdef CONFIG_FB_SIS_315
-    u8  cr63=0;
+	u8  cr63 = 0;
 #endif
-    u16 temp = 0xffff;
-    int i;
+	u16 temp = 0xffff;
+	int i;
+
+	sr1F = SiS_GetReg(SISSR, 0x1F);
+	SiS_SetRegOR(SISSR, 0x1F, 0x04);
+	SiS_SetRegAND(SISSR, 0x1F, 0x3F);
 
-    sr1F = SiS_GetReg(SISSR, 0x1F);
-    SiS_SetRegOR(SISSR, 0x1F, 0x04);
-    SiS_SetRegAND(SISSR, 0x1F, 0x3F);
-    if(sr1F & 0xc0) mustwait = true;
+	if (sr1F & 0xc0)
+		mustwait = true;
 
 #ifdef CONFIG_FB_SIS_315
-    if(ivideo->sisvga_engine == SIS_315_VGA) {
-       cr63 = SiS_GetReg(SISCR, ivideo->SiS_Pr.SiS_MyCR63);
-       cr63 &= 0x40;
-       SiS_SetRegAND(SISCR, ivideo->SiS_Pr.SiS_MyCR63, 0xBF);
-    }
+	if (ivideo->sisvga_engine == SIS_315_VGA) {
+		cr63 = SiS_GetReg(SISCR, ivideo->SiS_Pr.SiS_MyCR63);
+		cr63 &= 0x40;
+		SiS_SetRegAND(SISCR, ivideo->SiS_Pr.SiS_MyCR63, 0xBF);
+	}
 #endif
 
-    cr17 = SiS_GetReg(SISCR, 0x17);
-    cr17 &= 0x80;
-    if(!cr17) {
-       SiS_SetRegOR(SISCR, 0x17, 0x80);
-       mustwait = true;
-       SiS_SetReg(SISSR, 0x00, 0x01);
-       SiS_SetReg(SISSR, 0x00, 0x03);
-    }
+	cr17 = SiS_GetReg(SISCR, 0x17);
+	cr17 &= 0x80;
 
-    if(mustwait) {
-       for(i=0; i < 10; i++) sisfbwaitretracecrt1(ivideo);
-    }
+	if (!cr17) {
+		SiS_SetRegOR(SISCR, 0x17, 0x80);
+		mustwait = true;
+		SiS_SetReg(SISSR, 0x00, 0x01);
+		SiS_SetReg(SISSR, 0x00, 0x03);
+	}
 
+	if (mustwait) {
+		for (i = 0; i < 10; i++)
+			sisfbwaitretracecrt1(ivideo);
+	}
 #ifdef CONFIG_FB_SIS_315
-    if(ivideo->chip >= SIS_330) {
-       SiS_SetRegAND(SISCR, 0x32, ~0x20);
-       if(ivideo->chip >= SIS_340) {
-	   SiS_SetReg(SISCR, 0x57, 0x4a);
-       } else {
-	   SiS_SetReg(SISCR, 0x57, 0x5f);
-       }
-	SiS_SetRegOR(SISCR, 0x53, 0x02);
-	while ((SiS_GetRegByte(SISINPSTAT)) & 0x01)    break;
-	while (!((SiS_GetRegByte(SISINPSTAT)) & 0x01)) break;
-	if ((SiS_GetRegByte(SISMISCW)) & 0x10) temp = 1;
-	SiS_SetRegAND(SISCR, 0x53, 0xfd);
-	SiS_SetRegAND(SISCR, 0x57, 0x00);
-    }
+	if (ivideo->chip >= SIS_330) {
+		SiS_SetRegAND(SISCR, 0x32, ~0x20);
+		if (ivideo->chip >= SIS_340)
+			SiS_SetReg(SISCR, 0x57, 0x4a);
+		else
+			SiS_SetReg(SISCR, 0x57, 0x5f);
+
+		SiS_SetRegOR(SISCR, 0x53, 0x02);
+		while ((SiS_GetRegByte(SISINPSTAT)) & 0x01)
+			break;
+		while (!((SiS_GetRegByte(SISINPSTAT)) & 0x01))
+			break;
+		if ((SiS_GetRegByte(SISMISCW)) & 0x10)
+			temp = 1;
+
+		SiS_SetRegAND(SISCR, 0x53, 0xfd);
+		SiS_SetRegAND(SISCR, 0x57, 0x00);
+	}
 #endif
 
-    if(temp == 0xffff) {
-       i = 3;
-       do {
-	  temp = SiS_HandleDDC(&ivideo->SiS_Pr, ivideo->vbflags,
-		ivideo->sisvga_engine, 0, 0, NULL, ivideo->vbflags2);
-       } while(((temp == 0) || (temp == 0xffff)) && i--);
+	if (temp == 0xffff) {
+		i = 3;
 
-       if((temp == 0) || (temp == 0xffff)) {
-          if(sisfb_test_DDC1(ivideo)) temp = 1;
-       }
-    }
+		do {
+			temp = SiS_HandleDDC(&ivideo->SiS_Pr, ivideo->vbflags,
+			ivideo->sisvga_engine, 0, 0, NULL, ivideo->vbflags2);
+		} while (((temp == 0) || (temp == 0xffff)) && i--);
 
-    if((temp) && (temp != 0xffff)) {
-       SiS_SetRegOR(SISCR, 0x32, 0x20);
-    }
+		if ((temp == 0) || (temp == 0xffff)) {
+			if (sisfb_test_DDC1(ivideo))
+				temp = 1;
+		}
+	}
+
+	if ((temp) && (temp != 0xffff))
+		SiS_SetRegOR(SISCR, 0x32, 0x20);
 
 #ifdef CONFIG_FB_SIS_315
-    if(ivideo->sisvga_engine == SIS_315_VGA) {
-	SiS_SetRegANDOR(SISCR, ivideo->SiS_Pr.SiS_MyCR63, 0xBF, cr63);
-    }
+	if (ivideo->sisvga_engine == SIS_315_VGA)
+		SiS_SetRegANDOR(SISCR, ivideo->SiS_Pr.SiS_MyCR63, 0xBF, cr63);
 #endif
 
-    SiS_SetRegANDOR(SISCR, 0x17, 0x7F, cr17);
-
-    SiS_SetReg(SISSR, 0x1F, sr1F);
+	SiS_SetRegANDOR(SISCR, 0x17, 0x7F, cr17);
+	SiS_SetReg(SISSR, 0x1F, sr1F);
 }
 
 /* Determine and detect attached devices on SiS30x */
@@ -2294,25 +2300,25 @@ static void SiS_SenseLCD(struct sis_video_info *ivideo)
 	ivideo->SiS_Pr.PanelSelfDetected = false;
 
 	/* LCD detection only for TMDS bridges */
-	if(!(ivideo->vbflags2 & VB2_SISTMDSBRIDGE))
+	if (!(ivideo->vbflags2 & VB2_SISTMDSBRIDGE))
 		return;
-	if(ivideo->vbflags2 & VB2_30xBDH)
+	if (ivideo->vbflags2 & VB2_30xBDH)
 		return;
 
 	/* If LCD already set up by BIOS, skip it */
 	reg = SiS_GetReg(SISCR, 0x32);
-	if(reg & 0x08)
+	if (reg & 0x08)
 		return;
 
 	realcrtno = 1;
-	if(ivideo->SiS_Pr.DDCPortMixup)
+	if (ivideo->SiS_Pr.DDCPortMixup)
 		realcrtno = 0;
 
 	/* Check DDC capabilities */
 	temp = SiS_HandleDDC(&ivideo->SiS_Pr, ivideo->vbflags, ivideo->sisvga_engine,
 				realcrtno, 0, &buffer[0], ivideo->vbflags2);
 
-	if((!temp) || (temp == 0xffff) || (!(temp & 0x02)))
+	if ((!temp) || (temp == 0xffff) || (!(temp & 0x02)))
 		return;
 
 	/* Read DDC data */
@@ -2321,17 +2327,17 @@ static void SiS_SenseLCD(struct sis_video_info *ivideo)
 		temp = SiS_HandleDDC(&ivideo->SiS_Pr, ivideo->vbflags,
 				ivideo->sisvga_engine, realcrtno, 1,
 				&buffer[0], ivideo->vbflags2);
-	} while((temp) && i--);
+	} while ((temp) && i--);
 
-	if(temp)
+	if (temp)
 		return;
 
 	/* No digital device */
-	if(!(buffer[0x14] & 0x80))
+	if (!(buffer[0x14] & 0x80))
 		return;
 
 	/* First detailed timing preferred timing? */
-	if(!(buffer[0x18] & 0x02))
+	if (!(buffer[0x18] & 0x02))
 		return;
 
 	xres = buffer[0x38] | ((buffer[0x3a] & 0xf0) << 4);
@@ -2339,26 +2345,26 @@ static void SiS_SenseLCD(struct sis_video_info *ivideo)
 
 	switch(xres) {
 		case 1024:
-			if(yres == 768)
+			if (yres == 768)
 				paneltype = 0x02;
 			break;
 		case 1280:
-			if(yres == 1024)
+			if (yres == 1024)
 				paneltype = 0x03;
 			break;
 		case 1600:
-			if((yres == 1200) && (ivideo->vbflags2 & VB2_30xC))
+			if ((yres == 1200) && (ivideo->vbflags2 & VB2_30xC))
 				paneltype = 0x0b;
 			break;
 	}
 
-	if(!paneltype)
+	if (!paneltype)
 		return;
 
-	if(buffer[0x23])
+	if (buffer[0x23])
 		cr37 |= 0x10;
 
-	if((buffer[0x47] & 0x18) == 0x18)
+	if ((buffer[0x47] & 0x18) == 0x18)
 		cr37 |= ((((buffer[0x47] & 0x06) ^ 0x06) << 5) | 0x20);
 	else
 		cr37 |= 0xc0;
@@ -2373,31 +2379,34 @@ static void SiS_SenseLCD(struct sis_video_info *ivideo)
 
 static int SISDoSense(struct sis_video_info *ivideo, u16 type, u16 test)
 {
-    int temp, mytest, result, i, j;
-
-    for(j = 0; j < 10; j++) {
-       result = 0;
-       for(i = 0; i < 3; i++) {
-          mytest = test;
-	   SiS_SetReg(SISPART4, 0x11, (type & 0x00ff));
-          temp = (type >> 8) | (mytest & 0x00ff);
-	  SiS_SetRegANDOR(SISPART4, 0x10, 0xe0, temp);
-          SiS_DDC2Delay(&ivideo->SiS_Pr, 0x1500);
-          mytest >>= 8;
-          mytest &= 0x7f;
-	   temp = SiS_GetReg(SISPART4, 0x03);
-          temp ^= 0x0e;
-          temp &= mytest;
-          if(temp == mytest) result++;
+	int temp, mytest, result, i, j;
+
+	for (j = 0; j < 10; j++) {
+		result = 0;
+		for (i = 0; i < 3; i++) {
+			mytest = test;
+			SiS_SetReg(SISPART4, 0x11, (type & 0x00ff));
+			temp = (type >> 8) | (mytest & 0x00ff);
+			SiS_SetRegANDOR(SISPART4, 0x10, 0xe0, temp);
+			SiS_DDC2Delay(&ivideo->SiS_Pr, 0x1500);
+			mytest >>= 8;
+			mytest &= 0x7f;
+			temp = SiS_GetReg(SISPART4, 0x03);
+			temp ^= 0x0e;
+			temp &= mytest;
+			if (temp == mytest)
+				result++;
 #if 1
-	  SiS_SetReg(SISPART4, 0x11, 0x00);
-	  SiS_SetRegAND(SISPART4, 0x10, 0xe0);
-	  SiS_DDC2Delay(&ivideo->SiS_Pr, 0x1000);
+			SiS_SetReg(SISPART4, 0x11, 0x00);
+			SiS_SetRegAND(SISPART4, 0x10, 0xe0);
+			SiS_DDC2Delay(&ivideo->SiS_Pr, 0x1000);
 #endif
-       }
-       if((result == 0) || (result >= 2)) break;
-    }
-    return result;
+		}
+
+		if ((result == 0) || (result >= 2))
+			break;
+	}
+	return result;
 }
 
 static void SiS_Sense30x(struct sis_video_info *ivideo)
@@ -4263,18 +4272,17 @@ static int sisfb_post_300_rwtest(struct sis_video_info *ivideo, int iteration,
 	unsigned int k, RankCapacity, PageCapacity, BankNumHigh, BankNumMid;
 	unsigned int PhysicalAdrOtherPage, PhysicalAdrHigh, PhysicalAdrHalfPage;
 
-	 for(k = 0; k < ARRAY_SIZE(SiS_DRAMType); k++) {
-
+	for (k = 0; k < ARRAY_SIZE(SiS_DRAMType); k++) {
 		RankCapacity = buswidth * SiS_DRAMType[k][3];
 
-		if(RankCapacity != PseudoRankCapacity)
+		if (RankCapacity != PseudoRankCapacity)
 			continue;
 
-		if((SiS_DRAMType[k][2] + SiS_DRAMType[k][0]) > PseudoAdrPinCount)
+		if ((SiS_DRAMType[k][2] + SiS_DRAMType[k][0]) > PseudoAdrPinCount)
 			continue;
 
 		BankNumHigh = RankCapacity * 16 * iteration - 1;
-		if(iteration == 3) {             /* Rank No */
+		if (iteration == 3) {             /* Rank No */
 			BankNumMid  = RankCapacity * 16 - 1;
 		} else {
 			BankNumMid  = RankCapacity * 16 * iteration / 2 - 1;
@@ -4288,18 +4296,22 @@ static int sisfb_post_300_rwtest(struct sis_video_info *ivideo, int iteration,
 		SiS_SetRegAND(SISSR, 0x15, 0xFB); /* Test */
 		SiS_SetRegOR(SISSR, 0x15, 0x04);  /* Test */
 		sr14 = (SiS_DRAMType[k][3] * buswidth) - 1;
-		if(buswidth == 4)      sr14 |= 0x80;
-		else if(buswidth == 2) sr14 |= 0x40;
+
+		if (buswidth == 4)
+			sr14 |= 0x80;
+		else if (buswidth == 2)
+			sr14 |= 0x40;
+
 		SiS_SetReg(SISSR, 0x13, SiS_DRAMType[k][4]);
 		SiS_SetReg(SISSR, 0x14, sr14);
 
 		BankNumHigh <<= 16;
 		BankNumMid <<= 16;
 
-		if((BankNumHigh + PhysicalAdrHigh      >= mapsize) ||
-		   (BankNumMid  + PhysicalAdrHigh      >= mapsize) ||
-		   (BankNumHigh + PhysicalAdrHalfPage  >= mapsize) ||
-		   (BankNumHigh + PhysicalAdrOtherPage >= mapsize))
+		if ((BankNumHigh + PhysicalAdrHigh >= mapsize) ||
+		    (BankNumMid  + PhysicalAdrHigh >= mapsize) ||
+		    (BankNumHigh + PhysicalAdrHalfPage  >= mapsize) ||
+		    (BankNumHigh + PhysicalAdrOtherPage >= mapsize))
 			continue;
 
 		/* Write data */
@@ -4313,7 +4325,7 @@ static int sisfb_post_300_rwtest(struct sis_video_info *ivideo, int iteration,
 				(FBAddr + BankNumHigh + PhysicalAdrOtherPage));
 
 		/* Read data */
-		if(readw(FBAddr + BankNumHigh + PhysicalAdrHigh) == PhysicalAdrHigh)
+		if (readw(FBAddr + BankNumHigh + PhysicalAdrHigh) == PhysicalAdrHigh)
 			return 1;
 	}
 
@@ -5872,7 +5884,7 @@ static int sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 			ivideo->cardnumber++;
 	}
 
-	strlcpy(ivideo->myid, chipinfo->chip_name, sizeof(ivideo->myid));
+	strscpy(ivideo->myid, chipinfo->chip_name, sizeof(ivideo->myid));
 
 	ivideo->warncount = 0;
 	ivideo->chip_id = pdev->device;
@@ -6155,24 +6167,20 @@ static int sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 #endif
 
 #ifdef CONFIG_FB_SIS_315
-		if(ivideo->sisvga_engine == SIS_315_VGA) {
+		if (ivideo->sisvga_engine == SIS_315_VGA) {
 			int result = 1;
-		/*	if((ivideo->chip == SIS_315H)   ||
-			   (ivideo->chip == SIS_315)    ||
-			   (ivideo->chip == SIS_315PRO) ||
-			   (ivideo->chip == SIS_330)) {
-				sisfb_post_sis315330(pdev);
-			} else */ if(ivideo->chip == XGI_20) {
+
+			if (ivideo->chip == XGI_20) {
 				result = sisfb_post_xgi(pdev);
 				ivideo->sisfb_can_post = 1;
-			} else if((ivideo->chip == XGI_40) && ivideo->haveXGIROM) {
+			} else if ((ivideo->chip == XGI_40) && ivideo->haveXGIROM) {
 				result = sisfb_post_xgi(pdev);
 				ivideo->sisfb_can_post = 1;
 			} else {
 				printk(KERN_INFO "sisfb: Card is not "
 					"POSTed and sisfb can't do this either.\n");
 			}
-			if(!result) {
+			if (!result) {
 				printk(KERN_ERR "sisfb: Failed to POST card\n");
 				ret = -ENODEV;
 				goto error_3;
diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c
index 6a52eba64559..fce6cfbadfd6 100644
--- a/drivers/video/fbdev/sm501fb.c
+++ b/drivers/video/fbdev/sm501fb.c
@@ -1719,7 +1719,7 @@ static int sm501fb_init_fb(struct fb_info *fb, enum sm501_controller head,
 		enable = 0;
 	}
 
-	strlcpy(fb->fix.id, fbname, sizeof(fb->fix.id));
+	strscpy(fb->fix.id, fbname, sizeof(fb->fix.id));
 
 	memcpy(&par->ops,
 	       (head == HEAD_CRT) ? &sm501fb_ops_crt : &sm501fb_ops_pnl,
diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
index d7aa5511c361..e65bdc499c23 100644
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -137,6 +137,8 @@ static int ufx_submit_urb(struct ufx_data *dev, struct urb * urb, size_t len);
 static int ufx_alloc_urb_list(struct ufx_data *dev, int count, size_t size);
 static void ufx_free_urb_list(struct ufx_data *dev);
 
+static DEFINE_MUTEX(disconnect_mutex);
+
 /* reads a control register */
 static int ufx_reg_read(struct ufx_data *dev, u32 index, u32 *data)
 {
@@ -1071,9 +1073,13 @@ static int ufx_ops_open(struct fb_info *info, int user)
 	if (user == 0 && !console)
 		return -EBUSY;
 
+	mutex_lock(&disconnect_mutex);
+
 	/* If the USB device is gone, we don't accept new opens */
-	if (dev->virtualized)
+	if (dev->virtualized) {
+		mutex_unlock(&disconnect_mutex);
 		return -ENODEV;
+	}
 
 	dev->fb_count++;
 
@@ -1097,6 +1103,8 @@ static int ufx_ops_open(struct fb_info *info, int user)
 	pr_debug("open /dev/fb%d user=%d fb_info=%p count=%d",
 		info->node, user, info, dev->fb_count);
 
+	mutex_unlock(&disconnect_mutex);
+
 	return 0;
 }
 
@@ -1741,6 +1749,8 @@ static void ufx_usb_disconnect(struct usb_interface *interface)
 {
 	struct ufx_data *dev;
 
+	mutex_lock(&disconnect_mutex);
+
 	dev = usb_get_intfdata(interface);
 
 	pr_debug("USB disconnect starting\n");
@@ -1761,6 +1771,8 @@ static void ufx_usb_disconnect(struct usb_interface *interface)
 	kref_put(&dev->kref, ufx_free);
 
 	/* consider ufx_data freed */
+
+	mutex_unlock(&disconnect_mutex);
 }
 
 static struct usb_driver ufx_driver = {
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 5c765655d000..5c891aa00d59 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -450,7 +450,7 @@ static int ssd1307fb_init(struct ssd1307fb_par *par)
 	if (ret < 0)
 		return ret;
 
-	/* Set Set Area Color Mode ON/OFF & Low Power Display Mode */
+	/* Set Area Color Mode ON/OFF & Low Power Display Mode */
 	if (par->area_color_enable || par->low_power) {
 		u32 mode;
 
@@ -817,7 +817,7 @@ fb_alloc_error:
 	return ret;
 }
 
-static int ssd1307fb_remove(struct i2c_client *client)
+static void ssd1307fb_remove(struct i2c_client *client)
 {
 	struct fb_info *info = i2c_get_clientdata(client);
 	struct ssd1307fb_par *par = info->par;
@@ -836,8 +836,6 @@ static int ssd1307fb_remove(struct i2c_client *client)
 	fb_deferred_io_cleanup(info);
 	__free_pages(__va(info->fix.smem_start), get_order(info->fix.smem_len));
 	framebuffer_release(info);
-
-	return 0;
 }
 
 static const struct i2c_device_id ssd1307fb_i2c_id[] = {
diff --git a/drivers/video/fbdev/sstfb.c b/drivers/video/fbdev/sstfb.c
index 73ca2782ebfc..a56b24288566 100644
--- a/drivers/video/fbdev/sstfb.c
+++ b/drivers/video/fbdev/sstfb.c
@@ -1387,7 +1387,7 @@ static int sstfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto fail;
 	}
 	sst_get_memsize(info, &fix->smem_len);
-	strlcpy(fix->id, spec->name, sizeof(fix->id));
+	strscpy(fix->id, spec->name, sizeof(fix->id));
 
 	printk(KERN_INFO "%s (revision %d) with %s dac\n",
 		fix->id, par->revision, par->dac_sw.name);
diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 38a861e22c33..7753e586e65a 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1298,7 +1298,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 	
 	/* limit fbsize to max visible screen size */
 	if (fix->smem_len > yres*fix->line_length)
-		fix->smem_len = yres*fix->line_length;
+		fix->smem_len = ALIGN(yres*fix->line_length, 4*1024*1024);
 	
 	fix->accel = FB_ACCEL_NONE;
 
diff --git a/drivers/video/fbdev/sunxvr1000.c b/drivers/video/fbdev/sunxvr1000.c
index 15b079505a00..490bd9a14763 100644
--- a/drivers/video/fbdev/sunxvr1000.c
+++ b/drivers/video/fbdev/sunxvr1000.c
@@ -80,7 +80,7 @@ static int gfb_set_fbinfo(struct gfb_info *gp)
 	info->pseudo_palette = gp->pseudo_palette;
 
 	/* Fill fix common fields */
-	strlcpy(info->fix.id, "gfb", sizeof(info->fix.id));
+	strscpy(info->fix.id, "gfb", sizeof(info->fix.id));
         info->fix.smem_start = gp->fb_base_phys;
         info->fix.smem_len = gp->fb_size;
         info->fix.type = FB_TYPE_PACKED_PIXELS;
diff --git a/drivers/video/fbdev/sunxvr2500.c b/drivers/video/fbdev/sunxvr2500.c
index 81d59613ea1f..f4059529c602 100644
--- a/drivers/video/fbdev/sunxvr2500.c
+++ b/drivers/video/fbdev/sunxvr2500.c
@@ -85,7 +85,7 @@ static int s3d_set_fbinfo(struct s3d_info *sp)
 	info->pseudo_palette = sp->pseudo_palette;
 
 	/* Fill fix common fields */
-	strlcpy(info->fix.id, "s3d", sizeof(info->fix.id));
+	strscpy(info->fix.id, "s3d", sizeof(info->fix.id));
         info->fix.smem_start = sp->fb_base_phys;
         info->fix.smem_len = sp->fb_size;
         info->fix.type = FB_TYPE_PACKED_PIXELS;
diff --git a/drivers/video/fbdev/sunxvr500.c b/drivers/video/fbdev/sunxvr500.c
index 3a51b2a1480c..b0c8cf0c535a 100644
--- a/drivers/video/fbdev/sunxvr500.c
+++ b/drivers/video/fbdev/sunxvr500.c
@@ -208,7 +208,7 @@ static int e3d_set_fbinfo(struct e3d_info *ep)
 	info->pseudo_palette = ep->pseudo_palette;
 
 	/* Fill fix common fields */
-	strlcpy(info->fix.id, "e3d", sizeof(info->fix.id));
+	strscpy(info->fix.id, "e3d", sizeof(info->fix.id));
         info->fix.smem_start = ep->fb_base_phys;
         info->fix.smem_len = ep->fb_size;
         info->fix.type = FB_TYPE_PACKED_PIXELS;
diff --git a/drivers/video/fbdev/tcx.c b/drivers/video/fbdev/tcx.c
index 1638a40fed22..01d87f53324d 100644
--- a/drivers/video/fbdev/tcx.c
+++ b/drivers/video/fbdev/tcx.c
@@ -333,7 +333,7 @@ tcx_init_fix(struct fb_info *info, int linebytes)
 	else
 		tcx_name = "TCX24";
 
-	strlcpy(info->fix.id, tcx_name, sizeof(info->fix.id));
+	strscpy(info->fix.id, tcx_name, sizeof(info->fix.id));
 
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
 	info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index 059e0174e139..592a913d0718 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c
@@ -1265,7 +1265,7 @@ static int tdfxfb_setup_ddc_bus(struct tdfxfb_i2c_chan *chan, const char *name,
 {
 	int rc;
 
-	strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name));
+	strscpy(chan->adapter.name, name, sizeof(chan->adapter.name));
 	chan->adapter.owner		= THIS_MODULE;
 	chan->adapter.class		= I2C_CLASS_DDC;
 	chan->adapter.algo_data		= &chan->algo;
@@ -1294,7 +1294,7 @@ static int tdfxfb_setup_i2c_bus(struct tdfxfb_i2c_chan *chan, const char *name,
 {
 	int rc;
 
-	strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name));
+	strscpy(chan->adapter.name, name, sizeof(chan->adapter.name));
 	chan->adapter.owner		= THIS_MODULE;
 	chan->adapter.algo_data		= &chan->algo;
 	chan->adapter.dev.parent	= dev;
diff --git a/drivers/video/fbdev/tgafb.c b/drivers/video/fbdev/tgafb.c
index 4600138e3bef..251dbd282f5e 100644
--- a/drivers/video/fbdev/tgafb.c
+++ b/drivers/video/fbdev/tgafb.c
@@ -1351,7 +1351,7 @@ tgafb_init_fix(struct fb_info *info)
 		memory_size = 16777216;
 	}
 
-	strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id));
+	strscpy(info->fix.id, tga_type_name, sizeof(info->fix.id));
 
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
 	info->fix.type_aux = 0;
diff --git a/drivers/video/fbdev/tridentfb.c b/drivers/video/fbdev/tridentfb.c
index 6813df793c49..219ce7292337 100644
--- a/drivers/video/fbdev/tridentfb.c
+++ b/drivers/video/fbdev/tridentfb.c
@@ -271,7 +271,7 @@ static int tridentfb_setup_ddc_bus(struct fb_info *info)
 {
 	struct tridentfb_par *par = info->par;
 
-	strlcpy(par->ddc_adapter.name, info->fix.id,
+	strscpy(par->ddc_adapter.name, info->fix.id,
 		sizeof(par->ddc_adapter.name));
 	par->ddc_adapter.owner		= THIS_MODULE;
 	par->ddc_adapter.class		= I2C_CLASS_DDC;
@@ -1128,11 +1128,6 @@ static inline void shadowmode_on(struct tridentfb_par *par)
 	write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
 }
 
-static inline void shadowmode_off(struct tridentfb_par *par)
-{
-	write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
-}
-
 /* Set the hardware to the requested video mode */
 static int tridentfb_set_par(struct fb_info *info)
 {
@@ -1475,7 +1470,7 @@ static int trident_pci_probe(struct pci_dev *dev,
 	if (err)
 		return err;
 
-	err = pci_enable_device(dev);
+	err = pcim_enable_device(dev);
 	if (err)
 		return err;
 
@@ -1715,12 +1710,10 @@ out_unmap2:
 	kfree(info->pixmap.addr);
 	if (info->screen_base)
 		iounmap(info->screen_base);
-	release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
 	disable_mmio(info->par);
 out_unmap1:
 	if (default_par->io_virt)
 		iounmap(default_par->io_virt);
-	release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
 	framebuffer_release(info);
 	return err;
 }
@@ -1735,8 +1728,6 @@ static void trident_pci_remove(struct pci_dev *dev)
 		i2c_del_adapter(&par->ddc_adapter);
 	iounmap(par->io_virt);
 	iounmap(info->screen_base);
-	release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
-	release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
 	kfree(info->pixmap.addr);
 	fb_dealloc_cmap(&info->cmap);
 	framebuffer_release(info);
diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index c863244ef12c..216d49c9d47e 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -370,7 +370,7 @@ static int dlfb_trim_hline(const u8 *bback, const u8 **bfront, int *width_bytes)
 	const unsigned long *back = (const unsigned long *) bback;
 	const unsigned long *front = (const unsigned long *) *bfront;
 	const int width = *width_bytes / sizeof(unsigned long);
-	int identical = width;
+	int identical;
 	int start = width;
 	int end = width;
 
diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
index 4df6772802d7..00d789b6c0fa 100644
--- a/drivers/video/fbdev/uvesafb.c
+++ b/drivers/video/fbdev/uvesafb.c
@@ -167,7 +167,7 @@ static int uvesafb_exec(struct uvesafb_ktask *task)
 	memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id));
 	m->seq = seq;
 	m->len = len;
-	m->ack = prandom_u32();
+	m->ack = get_random_u32();
 
 	/* uvesafb_task structure */
 	memcpy(m + 1, &task->t, sizeof(task->t));
@@ -1580,7 +1580,7 @@ static ssize_t uvesafb_show_vendor(struct device *dev,
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_vendor_name_ptr)
-		return snprintf(buf, PAGE_SIZE, "%s\n", (char *)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", (char *)
 			(&par->vbe_ib) + par->vbe_ib.oem_vendor_name_ptr);
 	else
 		return 0;
@@ -1595,7 +1595,7 @@ static ssize_t uvesafb_show_product_name(struct device *dev,
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_product_name_ptr)
-		return snprintf(buf, PAGE_SIZE, "%s\n", (char *)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", (char *)
 			(&par->vbe_ib) + par->vbe_ib.oem_product_name_ptr);
 	else
 		return 0;
@@ -1610,7 +1610,7 @@ static ssize_t uvesafb_show_product_rev(struct device *dev,
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_product_rev_ptr)
-		return snprintf(buf, PAGE_SIZE, "%s\n", (char *)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", (char *)
 			(&par->vbe_ib) + par->vbe_ib.oem_product_rev_ptr);
 	else
 		return 0;
@@ -1625,7 +1625,7 @@ static ssize_t uvesafb_show_oem_string(struct device *dev,
 	struct uvesafb_par *par = info->par;
 
 	if (par->vbe_ib.oem_string_ptr)
-		return snprintf(buf, PAGE_SIZE, "%s\n",
+		return scnprintf(buf, PAGE_SIZE, "%s\n",
 			(char *)(&par->vbe_ib) + par->vbe_ib.oem_string_ptr);
 	else
 		return 0;
@@ -1639,7 +1639,7 @@ static ssize_t uvesafb_show_nocrtc(struct device *dev,
 	struct fb_info *info = dev_get_drvdata(dev);
 	struct uvesafb_par *par = info->par;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", par->nocrtc);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", par->nocrtc);
 }
 
 static ssize_t uvesafb_store_nocrtc(struct device *dev,
diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c
index 35cf51ae3292..af47f8217095 100644
--- a/drivers/video/fbdev/vga16fb.c
+++ b/drivers/video/fbdev/vga16fb.c
@@ -1421,6 +1421,7 @@ static const struct platform_device_id vga16fb_driver_id_table[] = {
 	{"vga-framebuffer", 0},
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, vga16fb_driver_id_table);
 
 static struct platform_driver vga16fb_driver = {
 	.probe = vga16fb_probe,
author	Maxime Ripard <maxime@cerno.tech>	2022-10-18 15:00:03 +0200
committer	Maxime Ripard <maxime@cerno.tech>	2022-10-18 15:00:03 +0200
commit	a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb (patch)
tree	b2d44a1da423c53bd6c3ab3facd45ff5f2087ffd /drivers/video
parent	dma-buf: Remove obsoleted internal lock (diff)
parent	Linux 6.1-rc1 (diff)
download	linux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.tar.xz linux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.zip