Phonet: Correct header retrieval after pskb_may_pull

[net-next-2.6.git] / net / phonet / pep.c

diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index b2a3ae6cad78e28324e23b857dc0a5773f569786..15003021f4f0a8706e540150425b4f995dc582a6 100644 (file)
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -225,12 +225,13 @@ static void pipe_grant_credits(struct sock *sk)
 static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb)
 {
        struct pep_sock *pn = pep_sk(sk);
-       struct pnpipehdr *hdr = pnp_hdr(skb);
+       struct pnpipehdr *hdr;
        int wake = 0;
 
        if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
                return -EINVAL;
 
+       hdr = pnp_hdr(skb);
        if (hdr->data[0] != PN_PEP_TYPE_COMMON) {
                LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP type: %u\n",
                                (unsigned)hdr->data[0]);