Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits)
  [media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
  mb86a20s: Add a few more register settings at the init seq
  mb86a20s: Group registers into the same line
  [media] [PATCH] don't reset the delivery system on DTV_CLEAR
  [media] [BUG] it913x-fe fix typo error making SNR levels unstable
  [media] cx23885: Query the CX25840 during enum_input for status
  [media] cx25840: Add support for g_input_status
  [media] rc-videomate-m1f.c Rename to match remote controler name
  [media] drivers: media: au0828: Fix dependency for VIDEO_AU0828
  [media] convert drivers/media/* to use module_platform_driver()
  [media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB
  [media] Exynos4 JPEG codec v4l2 driver
  [media] doc: v4l: selection: choose pixels as units for selection rectangles
  [media] v4l: s5p-tv: mixer: fix setup of VP scaling
  [media] v4l: s5p-tv: mixer: add support for selection API
  [media] v4l: emulate old crop API using extended crop/compose API
  [media] doc: v4l: add documentation for selection API
  [media] doc: v4l: add binary images for selection API
  [media] v4l: add support for selection api
  [media] hd29l2: fix review findings
  ...

1 files changed, 40 insertions, 46 deletions

diff --git a/drivers/media/video/cx231xx/cx231xx-cards.c b/drivers/media/video/cx231xx/cx231xx-cards.c
index 60b021e79864..919ed77b32f2 100644
--- a/drivers/media/video/cx231xx/cx231xx-cards.c
+++ b/drivers/media/video/cx231xx/cx231xx-cards.c
@@ -843,25 +843,34 @@ void cx231xx_release_resources(struct cx231xx *dev)
 
 	cx231xx_remove_from_devlist(dev);
 
+	cx231xx_ir_exit(dev);
+
 	/* Release I2C buses */
 	cx231xx_dev_uninit(dev);
 
-	cx231xx_ir_exit(dev);
+	/* delete v4l2 device */
+	v4l2_device_unregister(&dev->v4l2_dev);
 
 	usb_put_dev(dev->udev);
 
 	/* Mark device as unused */
-	cx231xx_devused &= ~(1 << dev->devno);
+	clear_bit(dev->devno, &cx231xx_devused);
+
+	kfree(dev->video_mode.alt_max_pkt_size);
+	kfree(dev->vbi_mode.alt_max_pkt_size);
+	kfree(dev->sliced_cc_mode.alt_max_pkt_size);
+	kfree(dev->ts1_mode.alt_max_pkt_size);
+	kfree(dev);
+	dev = NULL;
 }
 
 /*
  * cx231xx_init_dev()
  * allocates and inits the device structs, registers i2c bus and v4l device
  */
-static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
+static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 			    int minor)
 {
-	struct cx231xx *dev = *devhandle;
 	int retval = -ENOMEM;
 	int errCode;
 	unsigned int maxh, maxw;
@@ -1016,7 +1025,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	int i, isoc_pipe = 0;
 	char *speed;
 	char descr[255] = "";
-	struct usb_interface *lif = NULL;
 	struct usb_interface_assoc_descriptor *assoc_desc;
 
 	udev = usb_get_dev(interface_to_usbdev(interface));
@@ -1030,21 +1038,21 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 		return -ENODEV;
 
 	/* Check to see next free device and mark as used */
-	nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
-	cx231xx_devused |= 1 << nr;
-
-	if (nr >= CX231XX_MAXBOARDS) {
-		cx231xx_err(DRIVER_NAME
-		 ": Supports only %i cx231xx boards.\n", CX231XX_MAXBOARDS);
-		cx231xx_devused &= ~(1 << nr);
-		return -ENOMEM;
-	}
+	do {
+		nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
+		if (nr >= CX231XX_MAXBOARDS) {
+			/* No free device slots */
+			cx231xx_err(DRIVER_NAME ": Supports only %i devices.\n",
+					CX231XX_MAXBOARDS);
+			return -ENOMEM;
+		}
+	} while (test_and_set_bit(nr, &cx231xx_devused));
 
 	/* allocate memory for our device state and initialize it */
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (dev == NULL) {
 		cx231xx_err(DRIVER_NAME ": out of memory!\n");
-		cx231xx_devused &= ~(1 << nr);
+		clear_bit(dev->devno, &cx231xx_devused);
 		return -ENOMEM;
 	}
 
@@ -1071,9 +1079,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	/* init CIR module TBD */
 
-	/* store the current interface */
-	lif = interface;
-
 	/*mode_tv: digital=1 or analog=0*/
 	dev->mode_tv = 0;
 
@@ -1113,9 +1118,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	     le16_to_cpu(udev->descriptor.idProduct),
 	     dev->max_iad_interface_count);
 
-	/* store the interface 0 back */
-	lif = udev->actconfig->interface[0];
-
 	/* increment interface count */
 	dev->interface_count++;
 
@@ -1126,7 +1128,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	if (assoc_desc->bFirstInterface != ifnum) {
 		cx231xx_err(DRIVER_NAME ": Not found "
 			    "matching IAD interface\n");
-		cx231xx_devused &= ~(1 << nr);
+		clear_bit(dev->devno, &cx231xx_devused);
 		kfree(dev);
 		dev = NULL;
 		return -ENODEV;
@@ -1135,7 +1137,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	cx231xx_info("registering interface %d\n", ifnum);
 
 	/* save our data pointer in this interface device */
-	usb_set_intfdata(lif, dev);
+	usb_set_intfdata(interface, dev);
 
 	/*
 	 * AV device initialization - only done at the last interface
@@ -1145,19 +1147,19 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 	if (retval) {
 		cx231xx_errdev("v4l2_device_register failed\n");
-		cx231xx_devused &= ~(1 << nr);
+		clear_bit(dev->devno, &cx231xx_devused);
 		kfree(dev);
 		dev = NULL;
 		return -EIO;
 	}
 	/* allocate device struct */
-	retval = cx231xx_init_dev(&dev, udev, nr);
+	retval = cx231xx_init_dev(dev, udev, nr);
 	if (retval) {
-		cx231xx_devused &= ~(1 << dev->devno);
+		clear_bit(dev->devno, &cx231xx_devused);
 		v4l2_device_unregister(&dev->v4l2_dev);
 		kfree(dev);
 		dev = NULL;
-		usb_set_intfdata(lif, NULL);
+		usb_set_intfdata(interface, NULL);
 
 		return retval;
 	}
@@ -1178,7 +1180,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	if (dev->video_mode.alt_max_pkt_size == NULL) {
 		cx231xx_errdev("out of memory!\n");
-		cx231xx_devused &= ~(1 << nr);
+		clear_bit(dev->devno, &cx231xx_devused);
 		v4l2_device_unregister(&dev->v4l2_dev);
 		kfree(dev);
 		dev = NULL;
@@ -1212,7 +1214,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	if (dev->vbi_mode.alt_max_pkt_size == NULL) {
 		cx231xx_errdev("out of memory!\n");
-		cx231xx_devused &= ~(1 << nr);
+		clear_bit(dev->devno, &cx231xx_devused);
 		v4l2_device_unregister(&dev->v4l2_dev);
 		kfree(dev);
 		dev = NULL;
@@ -1247,7 +1249,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
 		cx231xx_errdev("out of memory!\n");
-		cx231xx_devused &= ~(1 << nr);
+		clear_bit(dev->devno, &cx231xx_devused);
 		v4l2_device_unregister(&dev->v4l2_dev);
 		kfree(dev);
 		dev = NULL;
@@ -1283,7 +1285,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 		if (dev->ts1_mode.alt_max_pkt_size == NULL) {
 			cx231xx_errdev("out of memory!\n");
-			cx231xx_devused &= ~(1 << nr);
+			clear_bit(dev->devno, &cx231xx_devused);
 			v4l2_device_unregister(&dev->v4l2_dev);
 			kfree(dev);
 			dev = NULL;
@@ -1334,10 +1336,9 @@ static void cx231xx_usb_disconnect(struct usb_interface *interface)
 	if (!dev->udev)
 		return;
 
-	flush_request_modules(dev);
+	dev->state |= DEV_DISCONNECTED;
 
-	/* delete v4l2 device */
-	v4l2_device_unregister(&dev->v4l2_dev);
+	flush_request_modules(dev);
 
 	/* wait until all current v4l2 io is finished then deallocate
 	   resources */
@@ -1351,31 +1352,24 @@ static void cx231xx_usb_disconnect(struct usb_interface *interface)
 		     "deallocation are deferred on close.\n",
 		     video_device_node_name(dev->vdev));
 
-		dev->state |= DEV_MISCONFIGURED;
+		/* Even having users, it is safe to remove the RC i2c driver */
+		cx231xx_ir_exit(dev);
+
 		if (dev->USE_ISO)
 			cx231xx_uninit_isoc(dev);
 		else
 			cx231xx_uninit_bulk(dev);
-		dev->state |= DEV_DISCONNECTED;
 		wake_up_interruptible(&dev->wait_frame);
 		wake_up_interruptible(&dev->wait_stream);
 	} else {
-		dev->state |= DEV_DISCONNECTED;
-		cx231xx_release_resources(dev);
 	}
 
 	cx231xx_close_extension(dev);
 
 	mutex_unlock(&dev->lock);
 
-	if (!dev->users) {
-		kfree(dev->video_mode.alt_max_pkt_size);
-		kfree(dev->vbi_mode.alt_max_pkt_size);
-		kfree(dev->sliced_cc_mode.alt_max_pkt_size);
-		kfree(dev->ts1_mode.alt_max_pkt_size);
-		kfree(dev);
-		dev = NULL;
-	}
+	if (!dev->users)
+		cx231xx_release_resources(dev);
 }
 
 static struct usb_driver cx231xx_usb_driver = {