[IPSEC]: Move state lock into x->type->input

[linux-2.6-omap-h63xx.git] / net / ipv6 / ah6.c

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index d4b59ecb0b57853b6ad03598c7f0768c0a0e9400..1b51d1eedbded106ce2adf60490636b1e23e0cb3 100644 (file)
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -370,6 +370,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
        ip6h->flow_lbl[2] = 0;
        ip6h->hop_limit   = 0;
 
+       spin_lock(&x->lock);
        {
                u8 auth_data[MAX_AH_AUTH_LEN];
 
@@ -378,13 +379,17 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
                skb_push(skb, hdr_len);
                err = ah_mac_digest(ahp, skb, ah->auth_data);
                if (err)
-                       goto free_out;
+                       goto unlock;
                if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
                        LIMIT_NETDEBUG(KERN_WARNING "ipsec ah authentication error\n");
                        err = -EBADMSG;
-                       goto free_out;
                }
        }
+unlock:
+       spin_unlock(&x->lock);
+
+       if (err)
+               goto free_out;
 
        skb->network_header += ah_hlen;
        memcpy(skb_network_header(skb), tmp_hdr, hdr_len);