The vb2_core_qbuf() function didn't check if q->error was set. It is checked in
__buf_prepare(), but that function isn't called if the buffer was already
prepared before with VIDIOC_PREPARE_BUF.
So check it at the start of vb2_core_qbuf() as well.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index d3501cd604cb..5d7946ec80d8 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -1484,6 +1484,11 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
struct vb2_buffer *vb;
int ret;
+ if (q->error) {
+ dprintk(1, "fatal error occurred on queue\n");
+ return -EIO;
+ }
+
vb = q->bufs[index];
if ((req && q->uses_qbuf) ||
