Do not print max dir number if the filesystem has no subdir limit.

Signed-off-by: Sheng Yong <[email protected]>
---
 lib/tests/tst_fs_fill_subdirs.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/tests/tst_fs_fill_subdirs.c b/lib/tests/tst_fs_fill_subdirs.c
index 496db59..7c956f6 100644
--- a/lib/tests/tst_fs_fill_subdirs.c
+++ b/lib/tests/tst_fs_fill_subdirs.c
@@ -33,10 +33,13 @@ static void cleanup(void)
 
 int main(void)
 {
+       int ret;
+
        tst_tmpdir();
 
-       fprintf(stderr, "Max dir elements = %i\n",
-               tst_fs_fill_subdirs(NULL, "dir"));
+       ret = tst_fs_fill_subdirs(NULL, "dir");
+       if (ret != -1)
+               fprintf(stderr, "Max dir elements = %i\n", ret);
 
        cleanup();
        tst_exit();
-- 
1.8.3.4


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