net: bfin_mac: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/adi/bfin_mac.c

@@ -1647,12 +1647,12 @@ static int bfin_mac_probe(struct platform_device *pdev)
 
 	setup_mac_addr(ndev->dev_addr);
 
-	if (!pdev->dev.platform_data) {
+	if (!dev_get_platdata(&pdev->dev)) {
 		dev_err(&pdev->dev, "Cannot get platform device bfin_mii_bus!\n");
 		rc = -ENODEV;
 		goto out_err_probe_mac;
 	}
-	pd = pdev->dev.platform_data;
+	pd = dev_get_platdata(&pdev->dev);
 	lp->mii_bus = platform_get_drvdata(pd);
 	if (!lp->mii_bus) {
 		dev_err(&pdev->dev, "Cannot get mii_bus!\n");
@@ -1660,7 +1660,7 @@ static int bfin_mac_probe(struct platform_device *pdev)
 		goto out_err_probe_mac;
 	}
 	lp->mii_bus->priv = ndev;
-	mii_bus_data = pd->dev.platform_data;
+	mii_bus_data = dev_get_platdata(&pd->dev);
 
 	rc = mii_probe(ndev, mii_bus_data->phy_mode);
 	if (rc) {