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>
diff --git a/drivers/leds/leds-regulator.c b/drivers/leds/leds-regulator.c
index 4253a9b..358430d 100644
--- a/drivers/leds/leds-regulator.c
+++ b/drivers/leds/leds-regulator.c
@@ -142,7 +142,8 @@
 
 static int regulator_led_probe(struct platform_device *pdev)
 {
-	struct led_regulator_platform_data *pdata = pdev->dev.platform_data;
+	struct led_regulator_platform_data *pdata =
+			dev_get_platdata(&pdev->dev);
 	struct regulator_led *led;
 	struct regulator *vcc;
 	int ret = 0;