From 48816322ad4d9ce195aaddd10f0ce98c944af193 Mon Sep 17 00:00:00 2001 From: Gerrit Renker Date: Sat, 23 Aug 2008 13:28:27 +0200 Subject: dccp: Empty the write queue when disconnecting dccp_disconnect() can be called due to several reasons: 1. when the connection setup failed (inet_stream_connect()); 2. when shutting down (inet_shutdown(), inet_csk_listen_stop()); 3. when aborting the connection (dccp_close() with 0 linger time). In case (1) the write queue is empty. This patch empties the write queue, if in case (2) or (3) it was not yet empty. This avoids triggering the write-queue BUG_TRAP in sk_stream_kill_queues() later on. It also seems natural to do: when breaking an association, to delete all packets that were originally intended for the soon-disconnected end (compare with call to tcp_write_queue_purge in tcp_disconnect()). Signed-off-by: Gerrit Renker --- net/dccp/proto.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/dccp/proto.c') diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 1ca3b26..ae66473 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -309,7 +309,9 @@ int dccp_disconnect(struct sock *sk, int flags) sk->sk_err = ECONNRESET; dccp_clear_xmit_timers(sk); + __skb_queue_purge(&sk->sk_receive_queue); + __skb_queue_purge(&sk->sk_write_queue); if (sk->sk_send_head != NULL) { __kfree_skb(sk->sk_send_head); sk->sk_send_head = NULL; -- cgit v1.1