diff mbox series

media: camss: Fix a reference count leak.

Message ID 20200613232713.19174-1-wu000273@umn.edu
State Accepted
Commit d0675b67b42eb4f1a840d1513b5b00f78312f833
Headers show
Series media: camss: Fix a reference count leak. | expand

Commit Message

wu000273@umn.edu June 13, 2020, 11:27 p.m. UTC 
From: Qiushi Wu <wu000273@umn.edu>

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 is not called in error handling paths.
Thus call pm_runtime_put_sync() if pm_runtime_get_sync() fails.

Fixes: 02afa816dbbf ("media: camss: Add basic runtime PM support")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
---
 drivers/media/platform/qcom/camss/camss-csiphy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c
index 008afb85023b..3c5b9082ad72 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy.c
@@ -176,8 +176,10 @@  static int csiphy_set_power(struct v4l2_subdev *sd, int on)
 		int ret;
 
 		ret = pm_runtime_get_sync(dev);
-		if (ret < 0)
+		if (ret < 0) {
+			pm_runtime_put_sync(dev);
 			return ret;
+		}
 
 		ret = csiphy_set_clock_rates(csiphy);
 		if (ret < 0) {