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media: staging: tegra-vde: fix runtime pm imbalance on error

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pm_runtime_get_sync() increments the runtime PM usage counter even
the call returns an error code. Thus a pairing decrement is needed
on the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Dinghao Liu 2020-05-21 08:27:45 +02:00 committed by Mauro Carvalho Chehab
parent 0c8bc934ee
commit 7dcfb327f8
1 changed files with 1 additions and 3 deletions
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4
drivers/staging/media/tegra-vde/vde.c
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@ -777,7 +777,7 @@ static int tegra_vde_ioctl_decode_h264(struct tegra_vde *vde,
ret = pm_runtime_get_sync(dev);
if (ret < 0)
goto unlock;
goto put_runtime_pm;
/*
* We rely on the VDE registers reset value, otherwise VDE
@ -843,8 +843,6 @@ static int tegra_vde_ioctl_decode_h264(struct tegra_vde *vde,
put_runtime_pm:
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
unlock:
mutex_unlock(&vde->lock);
release_dpb_frames: