diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 74f1c15..be5c690 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -200,9 +200,12 @@ static int orion_mdio_probe(struct platform_device *pdev)
 static int orion_mdio_remove(struct platform_device *pdev)
 {
 	struct mii_bus *bus = platform_get_drvdata(pdev);
+	struct orion_mdio_dev *dev = bus->priv;
+
 	mdiobus_unregister(bus);
 	kfree(bus->irq);
 	mdiobus_free(bus);
+	iounmap(dev->smireg);
 	return 0;
 }