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media: tw686x: Fix memory leak in tw686x_video_init

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[ Upstream commit e0b212ec9d8177d6f7c404315293f6a085d6ee42 ]

video_device_alloc() allocates memory for vdev,
when video_register_device() fails, it doesn't release the memory and
leads to memory leak, call video_device_release() to fix this.

Fixes: 704a84ccdbf1 ("[media] media: Support Intersil/Techwell TW686x-based video capture cards")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-06-21 06:30:30 +01:00 committed by Greg Kroah-Hartman
parent 7f7336ce35
commit 611f86965d
1 changed files with 3 additions and 1 deletions
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4
drivers/media/pci/tw686x/tw686x-video.c
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@ -1283,8 +1283,10 @@ int tw686x_video_init(struct tw686x_dev *dev)
video_set_drvdata(vdev, vc);
err = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
if (err < 0)
if (err < 0) {
video_device_release(vdev);
goto error;
}
vc->num = vdev->num;
}