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net: fix memory leak on oom with zerocopy 

If orphan flags fails, we don't free the skb
on receive, which leaks the skb memory.

Return value was also wrong: netif_receive_skb
is supposed to return NET_RX_DROP, not ENOMEM.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael S. Tsirkin 2012-09-15 22:44:16 +00:00 committed by David S. Miller
parent e4d1aa40e3
commit 0e698bf662
1 changed files with 1 additions and 1 deletions
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2
net/core/dev.c
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@ -3322,7 +3322,7 @@ ncls:
if (pt_prev) { if (pt_prev) {
if (unlikely(skb_orphan_frags(skb, GFP_ATOMIC))) if (unlikely(skb_orphan_frags(skb, GFP_ATOMIC)))
ret = -ENOMEM; goto drop;
else else
ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev); ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
} else { } else {