[PATCH] ucc_geth: Initialize mdio_lock.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/ucc_geth.c

@@ -1852,6 +1852,8 @@ static int init_phy(struct net_device *dev)
 	mii_info->mdio_read = &read_phy_reg;
 	mii_info->mdio_write = &write_phy_reg;
 
+	spin_lock_init(&mii_info->mdio_lock);
+
 	ugeth->mii_info = mii_info;
 
 	spin_lock_irq(&ugeth->lock);