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Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0fb8b441f1f9..17b89c523f9d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -439,12 +439,14 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
439 !tp->urg_data || 439 !tp->urg_data ||
440 before(tp->urg_seq, tp->copied_seq) || 440 before(tp->urg_seq, tp->copied_seq) ||
441 !before(tp->urg_seq, tp->rcv_nxt)) { 441 !before(tp->urg_seq, tp->rcv_nxt)) {
442 struct sk_buff *skb;
443
442 answ = tp->rcv_nxt - tp->copied_seq; 444 answ = tp->rcv_nxt - tp->copied_seq;
443 445
444 /* Subtract 1, if FIN is in queue. */ 446 /* Subtract 1, if FIN is in queue. */
445 if (answ && !skb_queue_empty(&sk->sk_receive_queue)) 447 skb = skb_peek_tail(&sk->sk_receive_queue);
446 answ -= 448 if (answ && skb)
447 tcp_hdr((struct sk_buff *)sk->sk_receive_queue.prev)->fin; 449 answ -= tcp_hdr(skb)->fin;
448 } else 450 } else
449 answ = tp->urg_seq - tp->copied_seq; 451 answ = tp->urg_seq - tp->copied_seq;
450 release_sock(sk); 452 release_sock(sk);
@@ -1382,11 +1384,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
1382 1384
1383 /* Next get a buffer. */ 1385 /* Next get a buffer. */
1384 1386
1385 skb = skb_peek(&sk->sk_receive_queue); 1387 skb_queue_walk(&sk->sk_receive_queue, skb) {
1386 do {
1387 if (!skb)
1388 break;
1389
1390 /* Now that we have two receive queues this 1388 /* Now that we have two receive queues this
1391 * shouldn't happen. 1389 * shouldn't happen.
1392 */ 1390 */
@@ -1403,8 +1401,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
1403 if (tcp_hdr(skb)->fin) 1401 if (tcp_hdr(skb)->fin)
1404 goto found_fin_ok; 1402 goto found_fin_ok;
1405 WARN_ON(!(flags & MSG_PEEK)); 1403 WARN_ON(!(flags & MSG_PEEK));
1406 skb = skb->next; 1404 }
1407 } while (skb != (struct sk_buff *)&sk->sk_receive_queue);
1408 1405
1409 /* Well, if we have backlog, try to process it now yet. */ 1406 /* Well, if we have backlog, try to process it now yet. */
1410 1407