From 289136ba460fcc860a0526ffff11e3ec1f0889c9 Mon Sep 17 00:00:00 2001
From: Brad Smith <brad@cvs.openbsd.org>
Date: Sun, 11 May 2008 02:55:46 +0000
Subject: Check to make sure pp_tlf is not NULL in sppp_keepalive() before
 calling it.

From NetBSD

ok canacar@
---
 sys/net/if_spppsubr.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'sys')

diff --git a/sys/net/if_spppsubr.c b/sys/net/if_spppsubr.c
index a5d6870081e..f0c6a2bcaab 100644
--- a/sys/net/if_spppsubr.c
+++ b/sys/net/if_spppsubr.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_spppsubr.c,v 1.66 2008/05/11 02:28:16 canacar Exp $	*/
+/*	$OpenBSD: if_spppsubr.c,v 1.67 2008/05/11 02:55:45 brad Exp $	*/
 /*
  * Synchronous PPP/Cisco link level subroutines.
  * Keepalive protocol implemented in both Cisco and PPP modes.
@@ -4549,7 +4549,8 @@ sppp_keepalive(void *dummy)
 
 				/* Close connection immediately, completition of this
 				 * will summon the magic needed to reestablish it. */
-				sp->pp_tlf(sp);
+				if (sp->pp_tlf)
+					sp->pp_tlf(sp);
 				continue;
 			}
 		}
-- 
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