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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-05-08 02:31:02 +0000 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-05-08 02:31:02 +0000 |
| commit | 6c59e2781795481200d573e3a4ef8b033924987a (patch) | |
| tree | 7366e0de67f0e937a22160d2fab3acbd47eca276 /linux/drivers | |
| parent | 786a5f9aea706d50ea3f806923dcbf8100f14626 (diff) | |
| download | mediapointer-dvb-s2-6c59e2781795481200d573e3a4ef8b033924987a.tar.gz mediapointer-dvb-s2-6c59e2781795481200d573e3a4ef8b033924987a.tar.bz2 | |
saa7134-video.c: fix the block bug
From: figo.zhang <figo.zhang@kolorific.com>
when re-open or re-start (video_streamon), the q->curr would not be NULL in saa7134_buffer_queue(),
and all the qbuf will add to q->queue list,no one to do activate to start DMA,and then no interrupt
would happened,so it will be block.
In VIDEOBUF_NEEDS_INIT state, initialize the curr pointer to be NULL in the buffer_prepare().
Signed-off-by: Figo.zhang <figo.zhang@kolorific.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'linux/drivers')
| -rw-r--r-- | linux/drivers/media/video/saa7134/saa7134-video.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/linux/drivers/media/video/saa7134/saa7134-video.c b/linux/drivers/media/video/saa7134/saa7134-video.c index 518de9b2c..4212c4ec8 100644 --- a/linux/drivers/media/video/saa7134/saa7134-video.c +++ b/linux/drivers/media/video/saa7134/saa7134-video.c @@ -1057,6 +1057,7 @@ static int buffer_prepare(struct videobuf_queue *q, buf->vb.field = field; buf->fmt = fh->fmt; buf->pt = &fh->pt_cap; + dev->video_q.curr = NULL; err = videobuf_iolock(q,&buf->vb,&dev->ovbuf); if (err) |