sh_eth: kill unneeded typecast in sh_eth_drv_probe()

sh_eth_drv_probe() does cast from 'void *' when assigning to the 'pd'  variable
which is automatic anyway. Turn the assignment into initializer, while removing
the cast...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/renesas/sh_eth.c

@@ -2351,7 +2351,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct net_device *ndev = NULL;
 	struct sh_eth_private *mdp = NULL;
-	struct sh_eth_plat_data *pd;
+	struct sh_eth_plat_data *pd = pdev->dev.platform_data;
 
 	/* get base addr */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -2401,7 +2401,6 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_resume(&pdev->dev);
 
-	pd = (struct sh_eth_plat_data *)(pdev->dev.platform_data);
 	/* get PHY ID */
 	mdp->phy_id = pd->phy;
 	mdp->phy_interface = pd->phy_interface;