From: Qiushi Wu <wu000273@umn.edu>
Date: Sat, 13 Jun 2020 23:19:44 +0000 (+0200)
Subject: media: platform: fcp: Fix a reference count leak.
X-Git-Tag: v4.9.241~118
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3af18152d6802b9f95fc04cd7eec5dc13b6cfe2f;p=platform%2Fkernel%2Flinux-amlogic.git

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

[ Upstream commit 63e36a381d92a9cded97e90d481ee22566557dd1 ]

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: 6eaafbdb668b ("[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>
---

diff --git a/drivers/media/platform/rcar-fcp.c b/drivers/media/platform/rcar-fcp.c
index 8e9c3bd36d03..5b5722e65e9b 100644
--- a/drivers/media/platform/rcar-fcp.c
+++ b/drivers/media/platform/rcar-fcp.c
@@ -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;
 }