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sgi-xp: fix a use after free 

Its illegal to dereference skb after dev_kfree_skb(skb)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Robin Holt <holt@sgi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2011-06-19 12:52:36 +00:00 committed by David S. Miller
parent 658924dc9a
commit 44da29d26b
1 changed files with 3 additions and 3 deletions
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6
drivers/misc/sgi-xp/xpnet.c
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@ -495,14 +495,14 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
}
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
if (atomic_dec_return(&queued_msg->use_count) == 0) {
dev_kfree_skb(skb);
kfree(queued_msg);
}
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
return NETDEV_TX_OK;
}