leds: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

drivers/leds/leds-gpio.c

@@ -233,7 +233,7 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
 
 static int gpio_led_probe(struct platform_device *pdev)
 {
-	struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
+	struct gpio_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct gpio_leds_priv *priv;
 	int i, ret = 0;