netdev - [PATCH] mv643xx_eth: check for valid hw address

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Message-ID: <20091204115138.GA5532@coldcone>
Date:	Fri, 4 Dec 2009 14:51:38 +0300
From:	"Denis Kirjanov <kirjanov@...il.com" <kirjanov@...il.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [PATCH] mv643xx_eth: check for valid hw address

Check for valid hw address.

Signed-off-by: Denis Kirjanov <kirjanov@...il.com>

---
drivers/net/mv643xx_eth.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 796a493..0b85501 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 -EADDRNOTAVAIL;
+
 	memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
 
 	netif_addr_lock_bh(dev);
--
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