| Message ID | 20210306141528.18925-1-baijiaju1990@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: platform: sunxi: sun6i-csi: fix error return code of sun6i_video_start_streaming() | expand |
On Sat, Mar 6, 2021 at 10:15 PM Jia-Ju Bai <baijiaju1990@gmail.com> wrote: > > 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> This should have the tag: Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI V3s") Please try to add them when fixing bugs. And this should also be tagged for stable, so Cc: <stable@kernel.org> Otherwise, Acked-by: Chen-Yu Tsai <wens@csie.org>
On 2021/3/7 20:47, Chen-Yu Tsai wrote: > On Sat, Mar 6, 2021 at 10:15 PM Jia-Ju Bai <baijiaju1990@gmail.com> wrote: >> 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> > This should have the tag: > > Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI V3s") > > Please try to add them when fixing bugs. And this should also be tagged > for stable, so > > Cc: <stable@kernel.org> > > Otherwise, > > Acked-by: Chen-Yu Tsai <wens@csie.org> Thanks for the advice :) I will add the fixes and stable tags in my future patches. Best wishes, Jia-Ju Bai
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c index b55de9ab64d8..3181d0781b61 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;
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> --- drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)