Hans Verkuil ee6869afc9 V4L/DVB: v4l2: add core serialization lock ... Drivers can optionally set a pointer to a mutex in struct video_device. The core will use that to lock before calling open, read, write, unlocked_ioctl, poll, mmap or release. Updated the documentation as well and ensure that v4l2-event knows about the lock: it will unlock it before doing a blocking wait on an event and relock it afterwards. Ensure that the 'video_is_registered' check is done when the lock is held: a typical disconnect will take the lock as well before unregistering the device nodes, so to prevent race conditions the video_is_registered check should also be done with the lock held. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>		2010-10-21 01:06:14 -02:00
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common	V4L/DVB: saa7146/tuner: remove mxb hack	2010-10-21 01:06:05 -02:00
dvb	V4L/DVB: dvb/bt8xx: kill the big kernel lock	2010-10-21 01:06:12 -02:00
IR	V4L/DVB: IR/lirc_dev: check for valid irctl in unregister path	2010-10-21 01:06:08 -02:00
radio	V4L/DVB: radio-si470x: use unlocked ioctl	2010-10-21 01:06:12 -02:00
video	V4L/DVB: v4l2: add core serialization lock	2010-10-21 01:06:14 -02:00
Kconfig	V4L/DVB (13612): IR: Move common IR code to drivers/media/IR	2009-12-16 00:18:42 -02:00
Makefile	V4L/DVB (13612): IR: Move common IR code to drivers/media/IR	2009-12-16 00:18:42 -02:00