static int tcp_to_nfattr(struct sk_buff *skb, struct nfattr *nfa,
const struct ip_conntrack *ct)
{
- struct nfattr *nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
+ struct nfattr *nest_parms;
read_lock_bh(&tcp_lock);
+ nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
&ct->proto.tcp.state);
read_unlock_bh(&tcp_lock);