From d238671c9e965a9c052e9abb18ce4facb9eddcbb Mon Sep 17 00:00:00 2001
From: Libo Chen <libo.chen@huawei.com>
Date: Tue, 10 Sep 2013 08:22:04 +0200
Subject: [PATCH] cgconfig: add parameter check

we should check invalite parameter, and then print a warning

v3:
 - usage has changed, so no need of fprintf output
v2:
 - change print info format. This is suggested
   by Dhaval Giani <dhaval.giani@gmail.com>

Signed-off-by: Libo Chen <clbchenlibo.chen@huawei.com>
Acked-by: Ivana Hutarova Varekova <varekova@redhat.com>
---
 src/tools/cgconfig.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/tools/cgconfig.c b/src/tools/cgconfig.c
index 900c2354..495e8b65 100644
--- a/src/tools/cgconfig.c
+++ b/src/tools/cgconfig.c
@@ -143,6 +143,12 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (argv[optind]) {
+		usage(1, argv[0]);
+		error = -1;
+		goto err;
+	}
+
 	/* set default permissions */
 	default_group = cgroup_new_cgroup("default");
 	if (!default_group) {
-- 
2.47.2