[src/trunk]: src/sys/arch/macppc/dev Be a bit more defensive.

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

details:   https://anonhg.NetBSD.org/src/rev/5478f61db617
branches:  trunk
changeset: 504309:5478f61db617
user:      matt <matt%NetBSD.org@localhost>
date:      Tue Feb 27 05:16:33 2001 +0000

description:
Be a bit more defensive.

diffstat:

 sys/arch/macppc/dev/gpio.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (19 lines):

diff -r c86117d201ac -r 5478f61db617 sys/arch/macppc/dev/gpio.c
--- a/sys/arch/macppc/dev/gpio.c        Tue Feb 27 05:15:03 2001 +0000
+++ b/sys/arch/macppc/dev/gpio.c        Tue Feb 27 05:16:33 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: gpio.c,v 1.1 2001/02/27 05:15:03 matt Exp $    */
+/*     $NetBSD: gpio.c,v 1.2 2001/02/27 05:16:33 matt Exp $    */
 
 /*-
  * Copyright (C) 1998  Internet Research Institute, Inc.
@@ -173,7 +173,8 @@
        int rv = 0;
 
 #if NADB > 0
-       rv = adb_intr(adb_cd.cd_devs[0]);
+       if (adb_cd.cd_devs[0] != NULL)
+               rv = adb_intr(adb_cd.cd_devs[0]);
 #endif
 
        return rv;