From 97198cd75e15457360aba93a28af65458292694f Mon Sep 17 00:00:00 2001
From: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Date: Thu, 2 Jun 2016 17:14:57 +0900
Subject: [PATCH] btrfs-progs: btrfs-crc: make argc check more strict

Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
 btrfs-crc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/btrfs-crc.c b/btrfs-crc.c
index 27244d78..c3e47747 100644
--- a/btrfs-crc.c
+++ b/btrfs-crc.c
@@ -69,12 +69,14 @@ int main(int argc, char **argv)
 	str = argv[optind];
 
 	if (!loop) {
-		if (check_argc_min(argc - optind, 1))
+		if (check_argc_exact(argc - optind, 1))
 			print_usage(255);
 
 		printf("%12u - %s\n", crc32c(~1, str, strlen(str)), str);
 		return 0;
 	}
+	if (check_argc_exact(argc - optind, 0))
+		print_usage(255);
 
 	buf = malloc(length);
 	if (!buf)