mtd: onenand: 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>

drivers/mtd/onenand/generic.c

@@ -38,7 +38,7 @@ struct onenand_info {
 static int generic_onenand_probe(struct platform_device *pdev)
 {
 	struct onenand_info *info;
-	struct onenand_platform_data *pdata = pdev->dev.platform_data;
+	struct onenand_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct resource *res = pdev->resource;
 	unsigned long size = resource_size(res);
 	int err;

drivers/mtd/onenand/omap2.c

@@ -639,7 +639,7 @@ static int omap2_onenand_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct mtd_part_parser_data ppdata = {};
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata == NULL) {
 		dev_err(&pdev->dev, "platform data missing\n");
 		return -ENODEV;

drivers/mtd/onenand/samsung.c

@@ -867,7 +867,7 @@ static int s3c_onenand_probe(struct platform_device *pdev)
 	struct resource *r;
 	int size, err;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	/* No need to check pdata. the platform data is optional */
 
 	size = sizeof(struct mtd_info) + sizeof(struct onenand_chip);