af_key: Do not call xfrm_probe_algs in parallel

[linux-2.6-block.git] / net / key / af_key.c

diff --git a/net/key/af_key.c b/net/key/af_key.c
index fb16d7c4e1b8d9b270e918222e23d12c00d109bb..20e73643b9c89846f81c6d84f41b08fa525149e3 100644 (file)
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1697,9 +1697,12 @@ static int pfkey_register(struct sock *sk, struct sk_buff *skb, const struct sad
                pfk->registered |= (1<<hdr->sadb_msg_satype);
        }
 
+       mutex_lock(&pfkey_mutex);
        xfrm_probe_algs();
 
        supp_skb = compose_sadb_supported(hdr, GFP_KERNEL | __GFP_ZERO);
+       mutex_unlock(&pfkey_mutex);
+
        if (!supp_skb) {
                if (hdr->sadb_msg_satype != SADB_SATYPE_UNSPEC)
                        pfk->registered &= ~(1<<hdr->sadb_msg_satype);