thermal: core: Use device_unregister() instead of device_del/put()

Lets not open code device_unregister() unnecessarily.

Signed-off-by: Viresh Kumar <[email protected]>
Reviewed-by: Yang Yingliang <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: vireshk

drivers/thermal/thermal_core.c

@@ -1105,8 +1105,7 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
 
 	mutex_unlock(&thermal_list_lock);
 
-	device_del(&cdev->device);
-	put_device(&cdev->device);
+	device_unregister(&cdev->device);
 }
 EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister);