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>.

[mchehab@redhat.com: add extra argument to a few missing places]
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
index 0b318bed4d52..211e83963a46 100644
--- a/drivers/media/video/fsl-viu.c
+++ b/drivers/media/video/fsl-viu.c
@@ -426,7 +426,7 @@ static void free_buffer(struct videobuf_queue *vq, struct viu_buf *buf)
 
         BUG_ON(in_interrupt());
 
-        videobuf_waiton(&buf->vb, 0, 0);
+        videobuf_waiton(vq, &buf->vb, 0, 0);
 
         if (vq->int_ops && vq->int_ops->vaddr)
                 vaddr = vq->int_ops->vaddr(vb);