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media: platform: s3c-camif: Fix runtime PM imbalance on error

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[ Upstream commit dafa3605fe60d5a61239d670919b2a36e712481e ]

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.

Also, call pm_runtime_disable() when pm_runtime_get_sync() returns
an error code.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Sylwester Nawrocki <snawrocki@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dinghao Liu 2020-05-21 15:29:33 +02:00 • committed by Greg Kroah-Hartman
commit 8d727e1d26
1 changed files with 2 additions and 3 deletions
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5
drivers/media/platform/s3c-camif/camif-core.c
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@ -464,7 +464,7 @@ static int s3c_camif_probe(struct platform_device *pdev)
ret = camif_media_dev_init(camif);
if (ret < 0)
goto err_alloc;
goto err_pm;
ret = camif_register_sensor(camif);
if (ret < 0)
@ -498,10 +498,9 @@ err_sens:
media_device_unregister(&camif->media_dev);
media_device_cleanup(&camif->media_dev);
camif_unregister_media_entities(camif);
err_alloc:
err_pm:
pm_runtime_put(dev);
pm_runtime_disable(dev);
err_pm:
camif_clk_put(camif);
err_clk:
s3c_camif_unregister_subdev(camif);