[PATCH AUTOSEL 5.4 4/8] media: meson: vdec: fix possible refcount leak in vdec_probe()

[Sasha Levin]

From: Hangyu Hua <hbh25y at 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 at gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco at xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab at kernel.org>
Signed-off-by: Sasha Levin <sashal at 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 8dd1396909d7..a242bbe23ba2 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -1074,6 +1074,7 @@ static int vdec_probe(struct platform_device *pdev)
 
 err_vdev_release:
 	video_device_release(vdev);
+	v4l2_device_unregister(&core->v4l2_dev);
 	return ret;
 }
 
@@ -1082,6 +1083,7 @@ 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