From a29ec08a1b649436248c140a3bc389bc11434c94 Mon Sep 17 00:00:00 2001
From: Denis Kirjanov <kirjanov@gmail.com>
Date: Tue, 8 Dec 2009 20:36:00 -0800
Subject: [PATCH] mv643xx_eth: check for valid hw address (resubmit)

Check for valid hw address.

Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/mv643xx_eth.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 796a493f95a..1405a170bb4 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1827,6 +1827,9 @@ static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
 {
 	struct sockaddr *sa = addr;
 
+	if (!is_valid_ether_addr(sa->sa_data))
+		return -EINVAL;
+
 	memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
 
 	netif_addr_lock_bh(dev);