[PATCH] ucc_geth: Initialize mdio_lock.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 62d979b..8243150 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -1852,6 +1852,8 @@
 	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);