diff options
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-v4l2.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c index 364b1fea3826..a70df16d68f1 100644 --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c @@ -378,8 +378,16 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md return ret; } - if (!(b->flags & V4L2_BUF_FLAG_REQUEST_FD)) + if (!(b->flags & V4L2_BUF_FLAG_REQUEST_FD)) { + if (q->uses_requests) { + dprintk(1, "%s: queue uses requests\n", opname); + return -EPERM; + } return 0; + } else if (q->uses_qbuf) { + dprintk(1, "%s: queue does not use requests\n", opname); + return -EPERM; + } /* * For proper locking when queueing a request you need to be able |