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 <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index fa68d1e..759b318 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -552,12 +552,16 @@
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 */