From 5e726900380cfff50436ca6c5e08b35b3357d82a Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Mon, 23 May 2011 13:14:18 -0400 Subject: [PATCH] tipc: Convert fatal broadcast sanity check to non-fatal check Modifies the existing broadcast link sanity check that detects an attempt to send a message off-node when there are no available destinations so that it no longer causes a kernel panic; instead, the check now issues a warning and stack trace and then returns without sending the message anywhere. Signed-off-by: Allan Stephens Signed-off-by: Paul Gortmaker --- net/tipc/bcast.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index fa68d1e9ff4b..759b318b5ffb 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -552,12 +552,16 @@ static int tipc_bcbearer_send(struct sk_buff *buf, if (likely(!msg_non_seq(buf_msg(buf)))) { struct tipc_msg *msg; - assert(tipc_bcast_nmap.count != 0); bcbuf_set_acks(buf, tipc_bcast_nmap.count); msg = buf_msg(buf); msg_set_non_seq(msg, 1); msg_set_mc_netid(msg, tipc_net_id); bcl->stats.sent_info++; + + if (WARN_ON(!tipc_bcast_nmap.count)) { + dump_stack(); + return 0; + } } /* Send buffer over bearers until all targets reached */ -- 2.20.1