tipc: Optimize message initialization routine

This patch eliminates the rarely-used "error code" argument
when initializing a TIPC message header, since the default
value of zero is the desired result in most cases; the few
exceptional cases now set the error code explicitly.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index ada213a..64c2028 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -120,8 +120,7 @@
 
 	if (buf) {
 		msg = buf_msg(buf);
-		msg_init(msg, LINK_CONFIG, type, TIPC_OK, DSC_H_SIZE,
-			 dest_domain);
+		msg_init(msg, LINK_CONFIG, type, DSC_H_SIZE, dest_domain);
 		msg_set_non_seq(msg);
 		msg_set_req_links(msg, req_links);
 		msg_set_dest_domain(msg, dest_domain);