HID: wiimote: use dev_to_wii()

Use dev_to_wii() instead of open-coding it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-wiimote-modules.c

@@ -296,14 +296,12 @@ static const struct wiimod_ops wiimod_battery = {
 
 static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
 {
-	struct wiimote_data *wdata;
 	struct device *dev = led_dev->dev->parent;
+	struct wiimote_data *wdata = dev_to_wii(dev);
 	int i;
 	unsigned long flags;
 	bool value = false;
 
-	wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
-
 	for (i = 0; i < 4; ++i) {
 		if (wdata->leds[i] == led_dev) {
 			spin_lock_irqsave(&wdata->state.lock, flags);
@@ -319,14 +317,12 @@ static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
 static void wiimod_led_set(struct led_classdev *led_dev,
 			   enum led_brightness value)
 {
-	struct wiimote_data *wdata;
 	struct device *dev = led_dev->dev->parent;
+	struct wiimote_data *wdata = dev_to_wii(dev);
 	int i;
 	unsigned long flags;
 	__u8 state, flag;
 
-	wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
-
 	for (i = 0; i < 4; ++i) {
 		if (wdata->leds[i] == led_dev) {
 			flag = WIIPROTO_FLAG_LED(i + 1);