[TCP]: Merge exit paths in tcp_v4_conn_request.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 10 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 3b26f9586dcb..3873c4dbeaeb 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1355,8 +1355,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
                             (s32)(peer->tcp_ts - req->ts_recent) >
                                                         TCP_PAWS_WINDOW) {
                                 NET_INC_STATS_BH(LINUX_MIB_PAWSPASSIVEREJECTED);
-                                dst_release(dst);
-                                goto drop_and_free;
+                                goto drop_and_release;
                         }
                 }
                 /* Kill the following clause, if you dislike this way. */
@@ -1376,24 +1375,21 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
                                        "request from %u.%u.%u.%u/%u\n",
                                        NIPQUAD(saddr),
                                        ntohs(tcp_hdr(skb)->source));
-                        dst_release(dst);
-                        goto drop_and_free;
+                        goto drop_and_release;
                 }
 
                 isn = tcp_v4_init_sequence(skb);
         }
         tcp_rsk(req)->snt_isn = isn;
 
-        if (__tcp_v4_send_synack(sk, req, dst))
+        if (__tcp_v4_send_synack(sk, req, dst) || want_cookie)
                 goto drop_and_free;
 
-        if (want_cookie) {
-                reqsk_free(req);
-        } else {
-                inet_csk_reqsk_queue_hash_add(sk, req, TCP_TIMEOUT_INIT);
-        }
+        inet_csk_reqsk_queue_hash_add(sk, req, TCP_TIMEOUT_INIT);
         return 0;
 
+drop_and_release:
+        dst_release(dst);
 drop_and_free:
         reqsk_free(req);
 drop: