diff --git a/[refs] b/[refs]
index 2ab45b4ab01d..854ea853b2c4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3672552dc0c5f6ffacb611a7ddb4ddbd8b3adb68
+refs/heads/master: 56e05fdb6d1fe02b7d28391332cf65a77bffd691
diff --git a/trunk/drivers/thermal/cpu_cooling.c b/trunk/drivers/thermal/cpu_cooling.c
index 4318a7d84df4..aa9c38b1c3ac 100644
--- a/trunk/drivers/thermal/cpu_cooling.c
+++ b/trunk/drivers/thermal/cpu_cooling.c
@@ -384,6 +384,11 @@ static int cpufreq_get_cur_state(struct thermal_cooling_device *cdev,
  * cpufreq_set_cur_state - callback function to set the current cooling state.
  * @cdev: thermal cooling device pointer.
  * @state: set this variable to the current cooling state.
+ *
+ * Callback for the thermal cooling device to change the cpufreq
+ * current cooling state.
+ *
+ * Return: 0 on success, an error code otherwise.
  */
 static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 				 unsigned long state)