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tipc: Convert fatal broadcast sanity check to non-fatal check

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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>
This commit is contained in:
Allan Stephens 2011-05-23 13:14:18 -04:00 committed by Paul Gortmaker
parent 21e842579a
commit 5e72690038
1 changed files with 5 additions and 1 deletions
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6
net/tipc/bcast.c
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@ -552,12 +552,16 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
if (likely(!msg_non_seq(buf_msg(buf)))) { if (likely(!msg_non_seq(buf_msg(buf)))) {
struct tipc_msg *msg; struct tipc_msg *msg;
assert(tipc_bcast_nmap.count != 0);
bcbuf_set_acks(buf, tipc_bcast_nmap.count); bcbuf_set_acks(buf, tipc_bcast_nmap.count);
msg = buf_msg(buf); msg = buf_msg(buf);
msg_set_non_seq(msg, 1); msg_set_non_seq(msg, 1);
msg_set_mc_netid(msg, tipc_net_id); msg_set_mc_netid(msg, tipc_net_id);
bcl->stats.sent_info++; bcl->stats.sent_info++;
if (WARN_ON(!tipc_bcast_nmap.count)) {
dump_stack();
return 0;
}
} }
/* Send buffer over bearers until all targets reached */ /* Send buffer over bearers until all targets reached */