From: Ross Zwisler <ross.zwisler@linux.intel.com>
Date: Mon, 24 Apr 2017 17:49:31 +0000 (-0600)
Subject: src/t_mmap_dio: fix incorrect argument count check
X-Git-Tag: v2022.05.01~2078
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=47a3f8a8308ef62205a7014f0d48dc8f9cdf10e5;p=xfstests-dev.git

src/t_mmap_dio: fix incorrect argument count check

t_mmap_dio.c actually requires 4 arguments, not 3 as the current
check enforces:

usage: t_mmap_dio <src file> <dest file> <size> <msg>
open src(No such file or directory) len 0 (null)

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Fixes: 456581661b4d ("xfs: test per-inode DAX flag by IO")
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
---

diff --git a/src/t_mmap_dio.c b/src/t_mmap_dio.c
index 69b9ca8c..6c8ca1a3 100644
--- a/src/t_mmap_dio.c
+++ b/src/t_mmap_dio.c
@@ -39,7 +39,7 @@ int main(int argc, char **argv)
 	char *dfile;
 	unsigned long len, opt;
 
-	if (argc < 4)
+	if (argc < 5)
 		usage(basename(argv[0]));
 
 	while ((opt = getopt(argc, argv, "b")) != -1)