ar71xx: ag71xx: use mdio bus name in ar7240_probe messages

The ar7240_probe function uses the network device name
in the kernel log messages, however the name is not yet
initialized when the ar7240_probe function is called.
Use the mdio bus name in the messages to avoid ugly
log lines like the following one:

  eth%d: Found an AR7240/AR9330 built-in switch

Reported-by: Ronald Wahl <ronald.wahl@raritan.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 39116

target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c

@@ -1043,7 +1043,7 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
 	if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
 	    (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
 		pr_err("%s: unknown phy id '%04x:%04x'\n",
-		       ag->dev->name, phy_id1, phy_id2);
+		       dev_name(&mii->dev), phy_id1, phy_id2);
 		return NULL;
 	}
 
@@ -1074,7 +1074,7 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
 					 AR934X_OPER_MODE0_PHY_MII_EN);
 		} else {
 			pr_err("%s: invalid PHY interface mode\n",
-			       ag->dev->name);
+			       dev_name(&mii->dev));
 			goto err_free;
 		}
 
@@ -1087,7 +1087,7 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
 		}
 	} else {
 		pr_err("%s: unsupported chip, ctrl=%08x\n",
-			ag->dev->name, ctrl);
+			dev_name(&mii->dev), ctrl);
 		goto err_free;
 	}
 
@@ -1098,7 +1098,7 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
 	if (register_switch(&as->swdev, ag->dev) < 0)
 		goto err_free;
 
-	pr_info("%s: Found an %s\n", ag->dev->name, swdev->name);
+	pr_info("%s: Found an %s\n", dev_name(&mii->dev), swdev->name);
 
 	/* initialize defaults */
 	for (i = 0; i < AR7240_MAX_VLANS; i++)