From 9c53a49c44f77022f10301cf4659a5629156a2e8 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Thu, 21 Jun 2012 11:58:39 +0200
Subject: [PATCH] lsblk: check ioctl result [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>
---
 misc-utils/lsblk.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
index fcc1acffa..53b59d225 100644
--- a/misc-utils/lsblk.c
+++ b/misc-utils/lsblk.c
@@ -470,7 +470,8 @@ static int is_readonly_device(struct blkdev_cxt *cxt)
 	/* fallback if "ro" attribute does not exist */
 	fd = open(cxt->filename, O_RDONLY);
 	if (fd != -1) {
-		ioctl(fd, BLKROGET, &ro);
+		if (ioctl(fd, BLKROGET, &ro) != 0)
+			ro = 0;
 		close(fd);
 	}
 	return ro;