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media: platform: sunxi: sun6i-csi: fix error return code of sun6i_video_start_streaming()

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[ Upstream commit f3d384e366 ]

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: 5cc7522d89 ("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>
This commit is contained in:
Jia-Ju Bai 2021-03-06 15:15:28 +01:00 • committed by Greg Kroah-Hartman
commit 697af15095
1 changed files with 3 additions and 1 deletions
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4
drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
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@ -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;