net: fec: Convert to use devm_ioremap_resource

Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: netdev@vger.kernel.org
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/fec_main.c

@@ -1876,17 +1876,17 @@ fec_probe(struct platform_device *pdev)
 	    (pdev->id_entry->driver_data & FEC_QUIRK_HAS_GBIT))
 		fep->pause_flag |= FEC_PAUSE_FLAG_AUTONEG;
 
-	fep->hwp = devm_request_and_ioremap(&pdev->dev, r);
+	fep->hwp = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(fep->hwp)) {
+		ret = PTR_ERR(fep->hwp);
+		goto failed_ioremap;
+	}
+
 	fep->pdev = pdev;
 	fep->dev_id = dev_id++;
 
 	fep->bufdesc_ex = 0;
 
-	if (!fep->hwp) {
-		ret = -ENOMEM;
-		goto failed_ioremap;
-	}
-
 	platform_set_drvdata(pdev, ndev);
 
 	ret = of_get_phy_mode(pdev->dev.of_node);