From 0e0809a58869e3e422985f868ad5e0da1fc0ba85 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 26 Sep 2010 09:01:26 -0300 Subject: V4L/DVB: videobuf: add queue argument to videobuf_waiton() videobuf_waiton() must unlock and relock ext_lock if it has to wait. For that to happen it needs the videobuf_queue pointer. Don't attempt to unlock/relock q->ext_lock unless it was locked in the first place. vb->state has to be protected by a spinlock to be safe. This patch is based on code from Mauro Carvalho Chehab . [mchehab@redhat.com: add extra argument to a few missing places] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-core.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h index 9a4194557e4a..1d3835fc26be 100644 --- a/include/media/videobuf-core.h +++ b/include/media/videobuf-core.h @@ -180,7 +180,8 @@ static inline void videobuf_queue_unlock(struct videobuf_queue *q) mutex_unlock(&q->vb_lock); } -int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr); +int videobuf_waiton(struct videobuf_queue *q, struct videobuf_buffer *vb, + int non_blocking, int intr); int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb, struct v4l2_framebuffer *fbuf); -- cgit v1.2.3