| Message ID | 1241750904.3420.26.camel@myhost (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
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)
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 , initial the curr pointer to be NULL in the buffer_prepare() function. Signed-off-by: Figo.zhang <figo.zhang@kolorific.com> --- drivers/media/video/saa7134/saa7134-video.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html