diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 25ae402..35a9ce7 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -405,6 +405,11 @@
 		goto out;
 	}
 
+	if (!bus) {
+		ret = -ENODEV;
+		goto out;
+	}
+
 	if (addr >= 0) {
 		phy = mdiobus_scan(bus, addr);
 		if (IS_ERR(phy)) {