]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
V4L/DVB (6601): V4L: videobuf-core locking fixes and comments
authorBrandon Philips <brandon@ifup.org>
Tue, 13 Nov 2007 23:05:38 +0000 (20:05 -0300)
committerMauro Carvalho Chehab <mchehab@infradead.org>
Tue, 11 Dec 2007 20:08:08 +0000 (18:08 -0200)
commit19bc5133dae9562e8824ef101464061f9854c1d8
tree8395e2da25f3cf5291e24f972d31a215ddf421a5
parent63337dd3f5506628e4831b08e39e09d7f1407769
V4L/DVB (6601): V4L: videobuf-core locking fixes and comments

- Add comments to functions that require that caller hold q->lock
- Add __videobuf_mmap_free that doesn't hold q->lock for use within videobuf
- Add locking to videobuf_mmap_free
- Fix linux/drivers/media/common/saa7146_video.c which was holding lock around
  videobuf_read_stop
- Add locking to functions that operate on a queue
- Add videobuf_stop to take care of stopping in both the read and stream case

TODO: bttv still has an unsafe call to videobuf_queue_is_busy

Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
drivers/media/common/saa7146_video.c
drivers/media/video/videobuf-core.c
include/media/videobuf-core.h