From: Mikulas Patocka <mpatocka@redhat.com>
Date: Wed, 10 Jul 2013 22:41:17 +0000 (+0100)
Subject: dm verity: remove pointless comparison
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5d8be84397618a2c04ec2b74d5d5a3d852a2ee5a;p=linux-beck.git

dm verity: remove pointless comparison

Remove num < 0 test in verity_ctr because num is unsigned.
(Found by Coverity.)

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c
index 0d2e812d424b..9804da16a476 100644
--- a/drivers/md/dm-verity.c
+++ b/drivers/md/dm-verity.c
@@ -695,8 +695,8 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 		goto bad;
 	}
 
-	if (sscanf(argv[0], "%d%c", &num, &dummy) != 1 ||
-	    num < 0 || num > 1) {
+	if (sscanf(argv[0], "%u%c", &num, &dummy) != 1 ||
+	    num > 1) {
 		ti->error = "Invalid version";
 		r = -EINVAL;
 		goto bad;