vb2_queue_or_prepare_buf  685 drivers/media/common/videobuf2/videobuf2-v4l2.c 	ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
vb2_queue_or_prepare_buf  758 drivers/media/common/videobuf2/videobuf2-v4l2.c 	ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);