thermal: of: fix OF node leak in of_thermal_zone_find()

[ Upstream commit 9164e09 ]

of_thermal_zone_find() calls of_parse_phandle_with_args(), but does not
release the OF node reference obtained by it.

Add a of_node_put() call when the call is successful.

Fixes: 3fd6d6e ("thermal/of: Rework the thermal device tree initialization")
Signed-off-by: Joe Hattori <[email protected]>
Link: https://patch.msgid.link/[email protected]
[ rjw: Changelog edit ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: joehattori

drivers/thermal/thermal_of.c

@@ -176,6 +176,7 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int
 				goto out;
 			}
 
+			of_node_put(sensor_specs.np);
 			if ((sensor == sensor_specs.np) && id == (sensor_specs.args_count ?
 								  sensor_specs.args[0] : 0)) {
 				pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, child);