net: sh_eth: modify a condition of ioremap for TSU

If the controller has TSU, the each channel needs TSU registers.
This patch also fixes the iounmap condition in the sh_eth_drv_remove().
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/renesas/sh_eth.c

@@ -1859,8 +1859,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	/* read and set MAC address */
 	read_mac_address(ndev, pd->mac_addr);
 
-	/* initialize first or needed device */
-	if (!devno || pd->needs_init) {
+	/* ioremap the TSU registers */
 	if (mdp->cd->tsu) {
 		struct resource *rtsu;
 		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -1871,6 +1870,9 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 		mdp->tsu_addr = ioremap(rtsu->start,
 					resource_size(rtsu));
 	}
+
+	/* initialize first or needed device */
+	if (!devno || pd->needs_init) {
 		if (mdp->cd->chip_reset)
 			mdp->cd->chip_reset(ndev);
 
@@ -1919,6 +1921,7 @@ static int sh_eth_drv_remove(struct platform_device *pdev)
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
+	if (mdp->cd->tsu)
 		iounmap(mdp->tsu_addr);
 	sh_mdio_release(ndev);
 	unregister_netdev(ndev);