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media: fimc-capture: Fix runtime PM imbalance on error

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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>
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 12:22:04 +02:00 committed by Mauro Carvalho Chehab
parent 157282a5c6
commit e40a8770fd
1 changed files with 3 additions and 1 deletions
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4
drivers/media/platform/exynos4-is/fimc-capture.c
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@ -478,8 +478,10 @@ static int fimc_capture_open(struct file *file)
set_bit(ST_CAPT_BUSY, &fimc->state);
ret = pm_runtime_get_sync(&fimc->pdev->dev);
if (ret < 0)
if (ret < 0) {
pm_runtime_put_sync(&fimc->pdev->dev);
goto unlock;
}
ret = v4l2_fh_open(file);
if (ret) {