[PATCH AUTOSEL 6.0 10/34] media: meson: vdec: fix possible refcount leak in vdec_probe()

Sasha Levin
2022-11-01T11:28:39Z

From: Hangyu Hua <hbh25y@gmail.com>

[ Upstream commit 7718999356234d9cc6a11b4641bb773928f1390f ]

v4l2_device_unregister need to be called to put the refcount got by
v4l2_device_register when vdec_probe fails or vdec_remove is called.

Signed-off-by: Hangyu Hua <hbh25y@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>
---
drivers/staging/media/meson/vdec/vdec.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c
index 8549d95be0f2..52f224d8def1 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -1102,6 +1102,7 @@ static int vdec_probe(struct platform_device *pdev)

err_vdev_release:
video_device_release(vdev);
+ v4l2_device_unregister(&core->v4l2_dev);
return ret;
}

@@ -1110,6 +1111,7 @@ static int vdec_remove(struct platform_device *pdev)
struct amvdec_core *core = platform_get_drvdata(pdev);

video_unregister_device(core->vdev_dec);
+ v4l2_device_unregister(&core->v4l2_dev);

return 0;
}
--
2.35.1