btrfs-progs: use check_argc_* to check arg number for all tools

Since this patch:
	btrfs-progs: move the check_argc_* functions into utils.c

All tools including the independent tools(e.g. btrfs-image, btrfs-convert)
can share the convenience of the check_argc_* functions, so this patch
adopt the argc check functions globally.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 5 insertions, 3 deletions

diff --git a/btrfs-fragments.c b/btrfs-fragments.c
index 160429ad..d03c2c3e 100644
--- a/btrfs-fragments.c
+++ b/btrfs-fragments.c
@@ -425,13 +425,15 @@ int main(int argc, char **argv)
 		}
 	}
 
-	if (optind < argc) {
-		path = argv[optind++];
-	} else {
+	set_argv0(argv);
+	argc = argc - optind;
+	if (check_argc_min(argc, 1)) {
 		usage();
 		exit(1);
 	}
 
+	path = argv[optind++];
+
 	fd = open_file_or_dir(path, &dirstream);
 	if (fd < 0) {
 		fprintf(stderr, "ERROR: can't access '%s'\n", path);