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Fix some boundary conditions (fence post errors).

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This commit is contained in:
matt 2012-07-18 17:41:59 +00:00
parent 1f432e4501
commit bff822726f
1 changed files with 5 additions and 5 deletions
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10
sys/arch/powerpc/powerpc/bus_space.c
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@ -1,4 +1,4 @@
/* $NetBSD: bus_space.c,v 1.33 2012/07/05 03:02:53 kiyohara Exp $ */
/* $NetBSD: bus_space.c,v 1.34 2012/07/18 17:41:59 matt Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bus_space.c,v 1.33 2012/07/05 03:02:53 kiyohara Exp $");
__KERNEL_RCSID(0, "$NetBSD: bus_space.c,v 1.34 2012/07/18 17:41:59 matt Exp $");
#define _POWERPC_BUS_SPACE_PRIVATE
@ -400,7 +400,7 @@ bus_space_init(struct powerpc_bus_space *t, const char *extent_name,
{
if (t->pbs_extent == NULL && extent_name != NULL) {
t->pbs_extent = extent_create(extent_name, t->pbs_base,
t->pbs_limit-1, storage, storage_size,
t->pbs_limit, storage, storage_size,
EX_NOCOALESCE|EX_NOWAIT);
if (t->pbs_extent == NULL)
return ENOMEM;
@ -525,7 +525,7 @@ memio_map(bus_space_tag_t t, bus_addr_t bpa, bus_size_t size, int flags,
size = _BUS_SPACE_STRIDE(t, size);
bpa = _BUS_SPACE_STRIDE(t, bpa);
if (t->pbs_limit != 0 && bpa + size > t->pbs_limit) {
if (t->pbs_limit != 0 && bpa + size - 1 > t->pbs_limit) {
#ifdef DEBUG
printf("bus_space_map(%p[%x:%x], %#x, %#x) failed: EINVAL\n",
t, t->pbs_base, t->pbs_limit, bpa, size);
@ -709,7 +709,7 @@ memio_alloc(bus_space_tag_t t, bus_addr_t rstart, bus_addr_t rend,
if (t->pbs_extent == NULL)
return ENOMEM;
if (t->pbs_limit != 0 && rstart + size > t->pbs_limit) {
if (t->pbs_limit != 0 && rstart + size - 1 > t->pbs_limit) {
#ifdef DEBUG
printf("%s(%p[%x:%x], %#x, %#x) failed: EINVAL\n",
__func__, t, t->pbs_base, t->pbs_limit, rstart, size);