On Monday, November 22, 2010 01:23:39 Laurent Pinchart wrote: > Hi Hans, > > I believe you've introduced a race condition in commit > dd0daf2a6fb6bec436a3ef68bd585ea09a2a54b7 > > v4l2-dev: remove unnecessary lock around atomic clear_bit > > By removing the mutex_lock/unlock around clear_bit, you're allowing > device_unregister() to race with v4l2_open(). The device can be unregistered > between the video_devdata() and video_get() calls. > > Could you confirm my analysis ? Yes, that's correct. Good catch. Regards, Hans -- Hans Verkuil - video4linux developer - sponsored by Cisco -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
