t_mmap_dio.c actually requires 4 arguments, not 3 as the current check
enforces:
# ./src/t_mmap_dio
usage: t_mmap_dio <src file> <dest file> <size> <msg>
# ./src/t_mmap_dio one two three
open src(No such file or directory) len 0 (null)
Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Fixes: 456581661b4d ("xfs: test per-inode DAX flag by IO")
---
src/t_mmap_dio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/t_mmap_dio.c b/src/t_mmap_dio.c
index 69b9ca8..6c8ca1a 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)
--
2.9.3
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