[src/trunk]: src/distrib/utils/sysinst avoid another divide-by-zero while com...

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

details:   https://anonhg.NetBSD.org/src/rev/79685e151909
branches:  trunk
changeset: 584523:79685e151909
user:      chs <chs%NetBSD.org@localhost>
date:      Thu Sep 22 15:41:14 2005 +0000

description:
avoid another divide-by-zero while computing geometry.

diffstat:

 distrib/utils/sysinst/mbr.c |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r 17168aff9cec -r 79685e151909 distrib/utils/sysinst/mbr.c
--- a/distrib/utils/sysinst/mbr.c       Thu Sep 22 14:04:29 2005 +0000
+++ b/distrib/utils/sysinst/mbr.c       Thu Sep 22 15:41:14 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: mbr.c,v 1.69 2005/08/28 19:57:25 dsl Exp $ */
+/*     $NetBSD: mbr.c,v 1.70 2005/09/22 15:41:14 chs Exp $ */
 
 /*
  * Copyright 1997 Piermont Information Systems Inc.
@@ -1699,7 +1699,7 @@
                        a2 -= s2;
                        num = (uint64_t)h1 * a2 - (quad_t)h2 * a1;
                        denom = (uint64_t)c2 * a1 - (quad_t)c1 * a2;
-                       if (denom != 0 && num % denom == 0) {
+                       if (num != 0 && denom != 0 && num % denom == 0) {
                                xheads = (int)(num / denom);
                                xsectors = a1 / (c1 * xheads + h1);
                                break;