dumpe2fs: don't crash when the user provides no block device argument

If the user doesn't provide any arguments, the guard fails to run and
the whole thing segfaults on ext2fs_open2().  Don't do that.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
index 1eae5a33..4185d6ee 100644
--- a/misc/dumpe2fs.c
+++ b/misc/dumpe2fs.c
@@ -575,7 +575,7 @@ int main (int argc, char ** argv)
 			usage();
 		}
 	}
-	if (argc - 1 > optind) {
+	if (optind != argc - 1) {
 		usage();
 		exit(1);
 	}