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don't assume that bus on intr_extra_buses has non-null pci_bridge_tag.

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pchb's second bus doesn't have it.

ok'ed by Frank van der Linden.
This commit is contained in:
yamt 2004-02-20 18:04:06 +00:00
parent d749a2d0b4
commit 2becafcd79
1 changed files with 4 additions and 2 deletions
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6
sys/arch/x86/x86/intr.c
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@ -1,4 +1,4 @@
/* $NetBSD: intr.c,v 1.13 2003/11/17 22:20:00 fvdl Exp $ */
/* $NetBSD: intr.c,v 1.14 2004/02/20 18:04:06 yamt Exp $ */
/*
* Copyright 2002 (c) Wasabi Systems, Inc.
@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.13 2003/11/17 22:20:00 fvdl Exp $");
__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.14 2004/02/20 18:04:06 yamt Exp $");
#include "opt_multiprocessor.h"
@ -233,6 +233,8 @@ intr_find_pcibridge(int bus, pcitag_t *pci_bridge_tag,
LIST_FOREACH(iebp, &intr_extra_buses, list) {
if (iebp->bus == bus) {
if (iebp->pci_bridge_tag == NULL)
return ENOENT;
*pci_bridge_tag = *iebp->pci_bridge_tag;
*pci_chipset_tag = iebp->pci_chipset_tag;
return 0;