diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 18ecae4a4375d461957b04ee8171f1e5e1434b8c..b4748337223b43d28aa7fb11d7eb788ec29d6da4 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -69,7 +69,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 		}
 
 		phy = get_phy_device(mdio, be32_to_cpup(addr));
-		if (!phy) {
+		if (!phy || IS_ERR(phy)) {
 			dev_err(&mdio->dev, "error probing PHY at address %i\n",
 				*addr);
 			continue;