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V4L/DVB: v4l2-dev: remove unnecessary lock around atomic clear_bit 

No need to lock when unregistering the device: clear_bit is already an
atomic operation.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2010-05-02 05:11:32 -03:00 committed by Mauro Carvalho Chehab
parent 0eed42e48a
commit dd0daf2a6f
1 changed files with 0 additions and 2 deletions
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2
drivers/media/video/v4l2-dev.c
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@ -600,9 +600,7 @@ void video_unregister_device(struct video_device *vdev)
if (!vdev || !video_is_registered(vdev)) if (!vdev || !video_is_registered(vdev))
return; return;
mutex_lock(&videodev_lock);
clear_bit(V4L2_FL_REGISTERED, &vdev->flags); clear_bit(V4L2_FL_REGISTERED, &vdev->flags);
mutex_unlock(&videodev_lock);
device_unregister(&vdev->dev); device_unregister(&vdev->dev);
} }
EXPORT_SYMBOL(video_unregister_device); EXPORT_SYMBOL(video_unregister_device);