diff options
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
| -rw-r--r-- | drivers/media/video/v4l2-dev.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 709069916068..0ca7ec9ca902 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -421,6 +421,10 @@ static int __video_register_device(struct video_device *vdev, int type, int nr, if (!vdev->release) return -EINVAL; + /* v4l2_fh support */ + spin_lock_init(&vdev->fh_lock); + INIT_LIST_HEAD(&vdev->fh_list); + /* Part 1: check device type */ switch (type) { case VFL_TYPE_GRABBER: @@ -596,9 +600,7 @@ void video_unregister_device(struct video_device *vdev) if (!vdev || !video_is_registered(vdev)) return; - mutex_lock(&videodev_lock); clear_bit(V4L2_FL_REGISTERED, &vdev->flags); - mutex_unlock(&videodev_lock); device_unregister(&vdev->dev); } EXPORT_SYMBOL(video_unregister_device); |