[src/trunk]: src/usr.sbin/acpitools/aml fix acpidump segfault

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

details:   https://anonhg.NetBSD.org/src/rev/71d0ad7f07aa
branches:  trunk
changeset: 747994:71d0ad7f07aa
user:      cegger <cegger%NetBSD.org@localhost>
date:      Thu Oct 08 13:16:13 2009 +0000

description:
fix acpidump segfault

diffstat:

 usr.sbin/acpitools/aml/aml_name.c |  9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diffs (33 lines):

diff -r e85f34f2246f -r 71d0ad7f07aa usr.sbin/acpitools/aml/aml_name.c
--- a/usr.sbin/acpitools/aml/aml_name.c Thu Oct 08 08:57:19 2009 +0000
+++ b/usr.sbin/acpitools/aml/aml_name.c Thu Oct 08 13:16:13 2009 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: aml_name.c,v 1.3 2008/01/15 19:08:00 jmcneill Exp $    */
+/*     $NetBSD: aml_name.c,v 1.4 2009/10/08 13:16:13 cegger Exp $      */
 
 /*-
  * Copyright (c) 1999 Takanori Watanabe
@@ -31,7 +31,7 @@
  *     $FreeBSD: src/usr.sbin/acpi/amldb/aml/aml_name.c,v 1.3 2000/11/09 06:24:45 iwasaki Exp $
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: aml_name.c,v 1.3 2008/01/15 19:08:00 jmcneill Exp $");
+__RCSID("$NetBSD: aml_name.c,v 1.4 2009/10/08 13:16:13 cegger Exp $");
 
 #include <sys/param.h>
 
@@ -283,11 +283,12 @@
        newname->parent = parent;
        newname->child = NULL;
        newname->property = NULL;
-       if (parent->child)
+       if (parent && parent->child)
                newname->brother = parent->child;
        else
                newname->brother = NULL;
-       parent->child = newname;
+       if (parent)
+               parent->child = newname;
 
        newname->chain = name_group_list->head;
        name_group_list->head = newname;