[PATCH 5.10 275/717] hwmon: (ina3221) Fix PM usage counter unbalance in ina3221_write_enable

[Greg Kroah-Hartman]

From: Zhang Qilong <zhangqilong3@xxxxxxxxxx>

[ Upstream commit bce776f10069c806290eaac712ba73432ae8ecd7 ]

pm_runtime_get_sync will increment pm usage counter
even it failed. Forgetting to putting operation will
result in reference leak here. We fix it by replacing
it with pm_runtime_resume_and_get to keep usage counter
balanced. It depends on the mainline commit[PM: runtime:
Add pm_runtime_resume_and_get to deal with usagecounter].

Fixes: 323aeb0eb5d9a ("hwmon: (ina3221) Add PM runtime support")
Signed-off-by: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201202145320.1135614-1-zhangqilong3@xxxxxxxxxx
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/hwmon/ina3221.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c
index 41fb17e0d6416..ad11cbddc3a7b 100644
--- a/drivers/hwmon/ina3221.c
+++ b/drivers/hwmon/ina3221.c
@@ -489,7 +489,7 @@ static int ina3221_write_enable(struct device *dev, int channel, bool enable)
 
 	/* For enabling routine, increase refcount and resume() at first */
 	if (enable) {
-		ret = pm_runtime_get_sync(ina->pm_dev);
+		ret = pm_runtime_resume_and_get(ina->pm_dev);
 		if (ret < 0) {
 			dev_err(dev, "Failed to get PM runtime\n");
 			return ret;
-- 
2.27.0