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 , inital the curr pointer to be NULL int the
buffer_prepare().
Signed-off-by: Figo.zhang <figo.zh...@kolorific.com>
---
drivers/media/video/saa7134/saa7134-video.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/saa7134/saa7134-video.c
b/drivers/media/video/saa7134/saa7134-video.c
index 493cad9..550d6ce 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/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)
--
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