summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorJingoo Han <jg1.han@samsung.com>2012-07-30 23:40:37 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-31 02:25:15 +0200
commitf673934c615987abe16919ede8fcd3ff6805d0d6 (patch)
tree37de532b32a948a35adcce3cb9cdf21edd4227f0 /drivers
parentbacklight: atmel-pwm-bl: use devm_gpio_request() (diff)
downloadlinux-f673934c615987abe16919ede8fcd3ff6805d0d6.tar.xz
linux-f673934c615987abe16919ede8fcd3ff6805d0d6.zip
backlight: ot200_bl: use devm_gpio_request()
The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_gpio_request() for these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/backlight/ot200_bl.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/video/backlight/ot200_bl.c b/drivers/video/backlight/ot200_bl.c
index ef637ffc0799..469cf0f109d2 100644
--- a/drivers/video/backlight/ot200_bl.c
+++ b/drivers/video/backlight/ot200_bl.c
@@ -84,7 +84,8 @@ static int ot200_backlight_probe(struct platform_device *pdev)
int retval = 0;
/* request gpio */
- if (gpio_request(GPIO_DIMM, "ot200 backlight dimmer") < 0) {
+ if (devm_gpio_request(&pdev->dev, GPIO_DIMM,
+ "ot200 backlight dimmer") < 0) {
dev_err(&pdev->dev, "failed to request GPIO %d\n", GPIO_DIMM);
return -ENODEV;
}
@@ -93,8 +94,7 @@ static int ot200_backlight_probe(struct platform_device *pdev)
pwm_timer = cs5535_mfgpt_alloc_timer(7, MFGPT_DOMAIN_ANY);
if (!pwm_timer) {
dev_err(&pdev->dev, "MFGPT 7 not available\n");
- retval = -ENODEV;
- goto error_mfgpt_alloc;
+ return -ENODEV;
}
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
@@ -131,8 +131,6 @@ static int ot200_backlight_probe(struct platform_device *pdev)
error_devm_kzalloc:
cs5535_mfgpt_free_timer(pwm_timer);
-error_mfgpt_alloc:
- gpio_free(GPIO_DIMM);
return retval;
}
@@ -149,7 +147,6 @@ static int ot200_backlight_remove(struct platform_device *pdev)
MAX_COMP2 - dim_table[100]);
cs5535_mfgpt_free_timer(pwm_timer);
- gpio_free(GPIO_DIMM);
return 0;
}