3.16.82-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> commit 470a9147899500eb4898f77816520c4b4aa1a698 upstream. The lock has been freed in usbvision_release() so there is no need to call mutex_unlock() here. Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- drivers/media/usb/usbvision/usbvision-video.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/media/usb/usbvision/usbvision-video.c +++ b/drivers/media/usb/usbvision/usbvision-video.c @@ -424,6 +424,7 @@ static int usbvision_v4l2_close(struct f if (usbvision->remove_pending) { printk(KERN_INFO "%s: Final disconnect\n", __func__); usbvision_release(usbvision); + return 0; } mutex_unlock(&usbvision->v4l2_lock); @@ -1178,6 +1179,7 @@ static int usbvision_radio_close(struct if (usbvision->remove_pending) { printk(KERN_INFO "%s: Final disconnect\n", __func__); usbvision_release(usbvision); + return err_code; } mutex_unlock(&usbvision->v4l2_lock);