net: smc91x: 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: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/smsc/smc91x.c

@@ -2202,7 +2202,7 @@ static void smc_release_datacs(struct platform_device *pdev, struct net_device *
  */
 static int smc_drv_probe(struct platform_device *pdev)
 {
-	struct smc91x_platdata *pd = pdev->dev.platform_data;
+	struct smc91x_platdata *pd = dev_get_platdata(&pdev->dev);
 	struct smc_local *lp;
 	struct net_device *ndev;
 	struct resource *res, *ires;