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media: bdisp: Fix runtime PM imbalance on error 

[ Upstream commit dbd2f2dc02 ]

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: Fabien Dessenne <fabien.dessenne@st.com>
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 12:00:21 +02:00 committed by Greg Kroah-Hartman
parent e984f79e2d
commit aaa35fd4e1
1 changed files with 1 additions and 2 deletions
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3
drivers/media/platform/sti/bdisp/bdisp-v4l2.c
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@ -1367,7 +1367,7 @@ static int bdisp_probe(struct platform_device *pdev)
ret = pm_runtime_get_sync(dev);
if (ret < 0) {
dev_err(dev, "failed to set PM\n");
goto err_dbg;
goto err_pm;
}
/* Filters */
@ -1395,7 +1395,6 @@ err_filter:
bdisp_hw_free_filters(bdisp->dev);
err_pm:
pm_runtime_put(dev);
err_dbg:
bdisp_debugfs_remove(bdisp);
err_v4l2:
v4l2_device_unregister(&bdisp->v4l2_dev);