thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_p…

…robe

[ Upstream commit 09700c5 ]

of_find_node_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: e20db70 ("thermal: imx_sc: add i.MX system controller thermal support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220517055121.18092-1-linmq006@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/thermal/imx_sc_thermal.c

@@ -94,8 +94,8 @@ static int imx_sc_thermal_probe(struct platform_device *pdev)
 		sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);
 		if (!sensor) {
 			of_node_put(child);
-			of_node_put(sensor_np);
-			return -ENOMEM;
+			ret = -ENOMEM;
+			goto put_node;
 		}
 
 		ret = thermal_zone_of_get_sensor_id(child,
@@ -124,7 +124,9 @@ static int imx_sc_thermal_probe(struct platform_device *pdev)
 			dev_warn(&pdev->dev, "failed to add hwmon sysfs attributes\n");
 	}
 
+put_node:
 	of_node_put(sensor_np);
+	of_node_put(np);
 
 	return ret;
 }