From: Jia-Ju Bai baijiaju1990@gmail.com
[ Upstream commit f3d384e36630e2a552d874e422835606d9cf230a ]
When sun6i_video_remote_subdev() returns NULL to subdev, no error return code of sun6i_video_start_streaming() is assigned. To fix this bug, ret is assigned with -EINVAL in this case.
Reported-by: TOTE Robot oslab@tsinghua.edu.cn Signed-off-by: Jia-Ju Bai baijiaju1990@gmail.com Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI V3s") Acked-by: Chen-Yu Tsai wens@csie.org Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c index f0dfe68486d1..c43a35df25de 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c @@ -151,8 +151,10 @@ static int sun6i_video_start_streaming(struct vb2_queue *vq, unsigned int count) }
subdev = sun6i_video_remote_subdev(video, NULL); - if (!subdev) + if (!subdev) { + ret = -EINVAL; goto stop_media_pipeline; + }
config.pixelformat = video->fmt.fmt.pix.pixelformat; config.code = video->mbus_code;