[PATCH] selftests/memfd/memfd_test: Fix possible NULL pointer dereference

[liuye]

    If name is NULL, a NULL pointer may be accessed in printf.

Signed-off-by: liuye <li...@kylinos.cn>
---
 tools/testing/selftests/memfd/memfd_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/memfd/memfd_test.c 
b/tools/testing/selftests/memfd/memfd_test.c
index c0c53451a16d..5b993924cc3f 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -171,7 +171,7 @@ static void mfd_fail_new(const char *name, unsigned int 
flags)
        r = sys_memfd_create(name, flags);
        if (r >= 0) {
                printf("memfd_create(\"%s\", %u) succeeded, but failure 
expected\n",
-                      name, flags);
+                      name ? name : "NULL", flags);
                close(r);
                abort();
        }
-- 
2.25.1