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au1000_eth: possible NULL dereference of aup->mii_bus->irq in au1000_probe()

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aup->mii_bus->irq allocation may fail, prevent a dereference of NULL.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
roel kluin 2009-08-30 22:40:15 +00:00 committed by David S. Miller
parent 5d7892298a
commit dcbfef820b
1 changed files with 3 additions and 0 deletions
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3
drivers/net/au1000_eth.c
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@ -1157,6 +1157,9 @@ static struct net_device * au1000_probe(int port_num)
aup->mii_bus->name = "au1000_eth_mii";
snprintf(aup->mii_bus->id, MII_BUS_ID_SIZE, "%x", aup->mac_id);
aup->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
if (aup->mii_bus->irq == NULL)
goto err_out;
for(i = 0; i < PHY_MAX_ADDR; ++i)
aup->mii_bus->irq[i] = PHY_POLL;