From: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Date: Wed, 12 Sep 2012 04:30:19 +0000 (+0900)
Subject: Btrfs-progs: fix arguments check of qgroup limit
X-Git-Tag: upstream/4.16.1~3516
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d88f33152f3d69240b6c690188b5d832a1663c07;p=platform%2Fupstream%2Fbtrfs-progs.git

Btrfs-progs: fix arguments check of qgroup limit

Segmentation fault occurred in the following command.

 # btrfs qgroup limit
 Segmentation fault

So, we should check a minimum number of arguments.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
---

diff --git a/cmds-qgroup.c b/cmds-qgroup.c
index 15534ea..1525c11 100644
--- a/cmds-qgroup.c
+++ b/cmds-qgroup.c
@@ -374,6 +374,9 @@ static int cmd_qgroup_limit(int argc, char **argv)
 		}
 	}
 
+	if (check_argc_min(argc - optind, 2))
+		usage(cmd_qgroup_limit_usage);
+
 	if (!parse_limit(argv[optind], &size)) {
 		fprintf(stderr, "Invalid size argument given\n");
 		return 1;