From 682587748fbd4c2b98e6e989548ca61d7127a212 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@gnumonks.org>
Date: Tue, 8 Mar 2011 13:35:17 +0100
Subject: [PATCH] vty: fix segfault if rf_ctl is not set

This is the case of osmo-nitb, since it does not call
osmo_bsc_rf_create().

term1: $ ./osmo-nitb -c ../openbsc.cfg.nanobts
term2: $ telnet localhost 4242
term2: OpenBSC> show network
term1: Segmentation fault
---
 openbsc/src/libbsc/bsc_vty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openbsc/src/libbsc/bsc_vty.c b/openbsc/src/libbsc/bsc_vty.c
index c0909db51..1afaed312 100644
--- a/openbsc/src/libbsc/bsc_vty.c
+++ b/openbsc/src/libbsc/bsc_vty.c
@@ -189,7 +189,7 @@ static void net_dump_vty(struct vty *vty, struct gsm_network *net)
 	dump_pchan_load_vty(vty, "    ", &pl);
 
 	/* show rf */
-	if (net->msc_data)
+	if (net->msc_data && net->msc_data->rf_ctl)
 		vty_out(vty, "  Last RF Command: %s%s",
 			net->msc_data->rf_ctl->last_state_command,
 			VTY_NEWLINE);