mtd: maps: 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/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 09c542b..10debfe 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -152,7 +152,7 @@
 
 static int ixp4xx_flash_remove(struct platform_device *dev)
 {
-	struct flash_platform_data *plat = dev->dev.platform_data;
+	struct flash_platform_data *plat = dev_get_platdata(&dev->dev);
 	struct ixp4xx_flash_info *info = platform_get_drvdata(dev);
 
 	if(!info)
@@ -178,7 +178,7 @@
 
 static int ixp4xx_flash_probe(struct platform_device *dev)
 {
-	struct flash_platform_data *plat = dev->dev.platform_data;
+	struct flash_platform_data *plat = dev_get_platdata(&dev->dev);
 	struct ixp4xx_flash_info *info;
 	struct mtd_part_parser_data ppdata = {
 		.origin = dev->resource->start,