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media: platform: fcp: Fix a reference count leak.

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[ Upstream commit 63e36a381d ]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code, causing incorrect ref count if
pm_runtime_put_noidle() is not called in error handling paths.
Thus call pm_runtime_put_noidle() if pm_runtime_get_sync() fails.

Fixes: 6eaafbdb66 ("[media] v4l: rcar-fcp: Keep the coding style consistent")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
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:
Qiushi Wu
2020-06-14 01:19:44 +02:00
committed by Greg Kroah-Hartman
parent 59409de85b
commit 3af18152d6
1 changed files with 3 additions and 1 deletions
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4
drivers/media/platform/rcar-fcp.c
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@@ -107,8 +107,10 @@ int rcar_fcp_enable(struct rcar_fcp_device *fcp)
return 0;
ret = pm_runtime_get_sync(fcp->dev);
if (ret < 0)
if (ret < 0) {
pm_runtime_put_noidle(fcp->dev);
return ret;
}
return 0;
}