[PATCH] b44: ensure valid mac addr

Added code to check for invalid MAC address from eeprom or user input.

Signed-off-by: Gary Zambrano <[e-mail]>
Signed-off-by: Jeff Garzik <[e-mail]>

drivers/net/b44.c

···
 	if (netif_running(dev))
 		return -EBUSY;
 
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EINVAL;
+
 	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
 
 	spin_lock_irq(&bp->lock);
···
 	bp->dev->dev_addr[3] = eeprom[80];
 	bp->dev->dev_addr[4] = eeprom[83];
 	bp->dev->dev_addr[5] = eeprom[82];
+
+	if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){
+		printk(KERN_ERR PFX "Invalid MAC address found in EEPROM\n");
+		return -EINVAL;
+	}
+
 	memcpy(bp->dev->perm_addr, bp->dev->dev_addr, bp->dev->addr_len);
 
 	bp->phy_addr = eeprom[90] & 0x1f;