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-lt3593.c b/drivers/leds/leds-lt3593.c
index ca48a7d5..3417e5b 100644
--- a/drivers/leds/leds-lt3593.c
+++ b/drivers/leds/leds-lt3593.c
@@ -135,7 +135,7 @@
 
 static int lt3593_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 lt3593_led_data *leds_data;
 	int i, ret = 0;
 
@@ -169,7 +169,7 @@
 static int lt3593_led_remove(struct platform_device *pdev)
 {
 	int i;
-	struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
+	struct gpio_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct lt3593_led_data *leds_data;
 
 	leds_data = platform_get_drvdata(pdev);