[src/trunk]: src/sys/dev/dm CID 976256: Help coverity understand that when th...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f3cbec688707
branches:  trunk
changeset: 808248:f3cbec688707
user:      christos <christos%NetBSD.org@localhost>
date:      Sun May 10 14:08:54 2015 +0000

description:
CID 976256: Help coverity understand that when the list is empty the head
is NULL.

diffstat:

 sys/dev/dm/dm_ioctl.c |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r 23b40cb002e5 -r f3cbec688707 sys/dev/dm/dm_ioctl.c
--- a/sys/dev/dm/dm_ioctl.c     Sun May 10 14:05:22 2015 +0000
+++ b/sys/dev/dm/dm_ioctl.c     Sun May 10 14:08:54 2015 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: dm_ioctl.c,v 1.29 2014/10/02 21:29:44 justin Exp $      */
+/* $NetBSD: dm_ioctl.c,v 1.30 2015/05/10 14:08:54 christos Exp $      */
 
 /*
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -774,7 +774,7 @@
                prop_dictionary_get_cstring(target_dict,
                    DM_TABLE_PARAMS, (char **) &str);
 
-               if (SLIST_EMPTY(tbl))
+               if (SLIST_EMPTY(tbl) || last_table == NULL)
                        /* insert this table to head */
                        SLIST_INSERT_HEAD(tbl, table_en, next);
                else