[src/trunk]: src/sys/dev/sbus fix off by one in zx_copyrect()

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

details:   https://anonhg.NetBSD.org/src/rev/384c0a47fa28
branches:  trunk
changeset: 750533:384c0a47fa28
user:      macallan <macallan%NetBSD.org@localhost>
date:      Tue Jan 05 05:04:38 2010 +0000

description:
fix off by one in zx_copyrect()

diffstat:

 sys/dev/sbus/zx.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r 6ac3e662e99e -r 384c0a47fa28 sys/dev/sbus/zx.c
--- a/sys/dev/sbus/zx.c Tue Jan 05 04:17:49 2010 +0000
+++ b/sys/dev/sbus/zx.c Tue Jan 05 05:04:38 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: zx.c,v 1.34 2010/01/05 04:17:49 macallan Exp $ */
+/*     $NetBSD: zx.c,v 1.35 2010/01/05 05:04:38 macallan Exp $ */
 
 /*
  *  Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -45,7 +45,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: zx.c,v 1.34 2010/01/05 04:17:49 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: zx.c,v 1.35 2010/01/05 05:04:38 macallan Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -862,6 +862,9 @@
 {
        uint32_t dir;
 
+       w -= 1;
+       h -= 1;
+
        if (sy < dy || sx < dx) {
                dir = 0x80000000;
                sx += w;