diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 586ed0915a293f25d6dd5d6cd1fee28e6ece283e..501a55ffce570d5e9920efb6933346705473e872 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -1294,6 +1294,9 @@ static int sh_mdio_release(struct net_device *ndev)
 	/* remove mdio bus info from net_device */
 	dev_set_drvdata(&ndev->dev, NULL);
 
+	/* free interrupts memory */
+	kfree(bus->irq);
+
 	/* free bitbang info */
 	free_mdio_bitbang(bus);