fix a non safe use of LIST_FOREACH with LIST_REMOVE

ok claudio@ kettenis@ reyk@

diff --git a/usr.sbin/dvmrpd/rde_srt.c b/usr.sbin/dvmrpd/rde_srt.c
index d646c24..cb8c328 100644 (file)
--- a/usr.sbin/dvmrpd/rde_srt.c
+++ b/usr.sbin/dvmrpd/rde_srt.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: rde_srt.c,v 1.25 2010/09/02 14:03:21 sobrado Exp $ */
+/*     $OpenBSD: rde_srt.c,v 1.26 2015/05/22 01:30:27 jsg Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -225,7 +225,7 @@ rt_remove(struct rt_node *r)
                return (-1);
        }
 
-       LIST_FOREACH(ds_nbr, &r->ds_list, entry) {
+       while ((ds_nbr = LIST_FIRST(&r->ds_list)) != NULL) {
                LIST_REMOVE(ds_nbr, entry);
                free(ds_nbr);
        }