From: Karel Zak <kzak@redhat.com>
Date: Wed, 25 Sep 2013 09:45:59 +0000 (+0200)
Subject: libfdisk: fix possible floating point exception
X-Git-Tag: v2.24-rc1~66
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5dd9251f198d4b034cc9ba70506aef07cdd9e2bb;p=thirdparty%2Futil-linux.git

libfdisk: fix possible floating point exception

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libfdisk/src/sun.c b/libfdisk/src/sun.c
index 41c156767a..5c38e8cca7 100644
--- a/libfdisk/src/sun.c
+++ b/libfdisk/src/sun.c
@@ -220,7 +220,10 @@ static int sun_create_disklabel(struct fdisk_context *cxt)
 	sec_fac = cxt->sector_size / 512;
 
 #ifdef HDIO_GETGEO
-	if (!ioctl(cxt->dev_fd, HDIO_GETGEO, &geometry)) {
+	if (ioctl(cxt->dev_fd, HDIO_GETGEO, &geometry) == 0
+	    && geometry.heads
+	    && geometry.sectors) {
+
 	        cxt->geom.heads = geometry.heads;
 	        cxt->geom.sectors = geometry.sectors;
 		if (res == 0) {