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Check for curproc being null before dereferencing it in more cases.

This commit is contained in:
mycroft 1997-03-18 13:01:07 +00:00
parent c944e200eb
commit 1068c83731
1 changed files with 5 additions and 5 deletions
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10
sys/arch/hp300/hp300/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.28 1997/02/02 08:01:32 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.29 1997/03/18 13:01:07 mycroft Exp $ */
/*
* Copyright (c) 1991, 1993
@ -908,7 +908,7 @@ pmap_remove(pmap, sva, eva)
* it won't be there
*/
if (pmap_aliasmask &&
(pmap == pmap_kernel() || pmap != curproc->p_vmspace->vm_map.pmap))
!(curproc && pmap == curproc->p_vmspace->vm_map.pmap))
needcflush = FALSE;
#ifdef DEBUG
if (pmap_aliasmask && (pmapvacflush & PVF_REMOVE)) {
@ -1998,7 +1998,7 @@ pmap_remove_mapping(pmap, va, pte, flags)
* flush the VAC. Note that the kernel side was flushed
* above so we don't worry about non-CI kernel mappings.
*/
if (pmap == curproc->p_vmspace->vm_map.pmap &&
if (curproc && pmap == curproc->p_vmspace->vm_map.pmap &&
!pmap_pte_ci(pte)) {
DCIU();
#ifdef PMAPSTATS
@ -2176,7 +2176,7 @@ pmap_remove_mapping(pmap, va, pte, flags)
* pointer for current process so
* update now to reload hardware.
*/
if (curproc != NULL &&
if (curproc &&
ptpmap == curproc->p_vmspace->vm_map.pmap)
PMAP_ACTIVATE(ptpmap,
&curproc->p_addr->u_pcb, 1);
@ -2421,7 +2421,7 @@ pmap_enter_ptpage(pmap, va)
* XXX may have changed segment table pointer for current
* process so update now to reload hardware.
*/
if (pmap == curproc->p_vmspace->vm_map.pmap)
if (curproc && pmap == curproc->p_vmspace->vm_map.pmap)
PMAP_ACTIVATE(pmap, &curproc->p_addr->u_pcb, 1);
#ifdef DEBUG
if (pmapdebug & (PDB_ENTER|PDB_PTPAGE|PDB_SEGTAB))