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[media] em28xx: always call em28xx_release_resources() in the usb disconnect handler 

When the usb device is disconnected, the resources are no longer available,
so there is no reason to keep them registered.

This will also fix the various sysfs group removal warnings which we can see
since kernel 3.13.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Frank Schaefer 2014-01-12 13:24:24 -03:00 committed by Mauro Carvalho Chehab
parent f188da4395
commit 5a620c7c1c
2 changed files with 5 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/media/usb/em28xx/em28xx-cards.c
View File

@ -2876,6 +2876,8 @@ void em28xx_release_resources(struct em28xx *dev)
{
/*FIXME: I2C IR should be disconnected */
mutex_lock(&dev->lock);
if (dev->def_i2c_bus)
em28xx_i2c_unregister(dev, 1);
em28xx_i2c_unregister(dev, 0);
@ -2884,6 +2886,8 @@ void em28xx_release_resources(struct em28xx *dev)
/* Mark device as unused */
clear_bit(dev->devno, &em28xx_devused);
mutex_unlock(&dev->lock);
};
EXPORT_SYMBOL_GPL(em28xx_release_resources);
@ -3386,13 +3390,7 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
em28xx_close_extension(dev);
/* NOTE: must be called BEFORE the resources are released */
mutex_lock(&dev->lock);
if (!dev->users)
em28xx_release_resources(dev);
mutex_unlock(&dev->lock);
em28xx_release_resources(dev);
if (!dev->users) {
kfree(dev->alt_max_pkt_size_isoc);

1
drivers/media/usb/em28xx/em28xx-video.c
View File

@ -1959,7 +1959,6 @@ static int em28xx_v4l2_close(struct file *filp)
free the remaining resources */
if (dev->disconnected) {
em28xx_release_resources(dev);
kfree(dev->alt_max_pkt_size_isoc);
goto exit;
}