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media: exynos4-is: Fix runtime PM imbalance in isp_video_open

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pm_runtime_get_sync() increments the runtime PM usage counter even
when it 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>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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 2020-05-24 05:34:04 +02:00 committed by Mauro Carvalho Chehab
parent 779096916d
commit 00b0228061
1 changed files with 1 additions and 0 deletions
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drivers/media/platform/exynos4-is/fimc-isp-video.c
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@ -293,6 +293,7 @@ static int isp_video_open(struct file *file)
if (!ret)
goto unlock;
rel_fh:
pm_runtime_put_noidle(&isp->pdev->dev);
v4l2_fh_release(file);
unlock:
mutex_unlock(&isp->video_lock);