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[PPP] pppoe: Fix skb_unshare_check call position

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The skb_unshare_check call needs to be made before pskb_may_pull,
not after.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2007-09-16 16:19:20 -07:00 committed by David S. Miller
parent 559cf710b0
commit 31bac44468
1 changed files with 3 additions and 3 deletions
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6
drivers/net/pppoe.c
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@ -385,12 +385,12 @@ static int pppoe_rcv(struct sk_buff *skb,
struct pppoe_hdr *ph;
struct pppox_sock *po;
if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr)))
goto drop;
if (!(skb = skb_share_check(skb, GFP_ATOMIC)))
goto out;
if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr)))
goto drop;
ph = pppoe_hdr(skb);
po = get_item((unsigned long) ph->sid, eth_hdr(skb)->h_source, dev->ifindex);