mtd: nand: 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: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index d42700a..cad4cdc 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -30,7 +30,7 @@
  */
 static int plat_nand_probe(struct platform_device *pdev)
 {
-	struct platform_nand_data *pdata = pdev->dev.platform_data;
+	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
 	struct mtd_part_parser_data ppdata;
 	struct plat_nand_data *data;
 	struct resource *res;
@@ -136,7 +136,7 @@
 static int plat_nand_remove(struct platform_device *pdev)
 {
 	struct plat_nand_data *data = platform_get_drvdata(pdev);
-	struct platform_nand_data *pdata = pdev->dev.platform_data;
+	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
 	struct resource *res;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);