USB: host: 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 915c2db..35cdbd8 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -131,7 +131,7 @@
 
 static int mv_ehci_probe(struct platform_device *pdev)
 {
-	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
+	struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct usb_hcd *hcd;
 	struct ehci_hcd *ehci;
 	struct ehci_hcd_mv *ehci_mv;