au1000_eth: possible NULL dereference of aup->mii_bus->irq in au1000_…

…probe() aup->mii_bus->irq allocation may fail, prevent a dereference of NULL. Signed-off-by: Roel Kluin <[email protected]> Acked-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
yshchan · Sep 2, 2009 · dcbfef8 · dcbfef8
1 parent 5d78922
commit dcbfef8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
@@ -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;