From c779104ef78736491c10ac45a14cc9242c2f94af Mon Sep 17 00:00:00 2001
From: armink <armink.ztl@gmail.com>
Date: Fri, 13 Jul 2018 11:14:36 +0800
Subject: [PATCH] [dfs] Fix dfs_file_ioctl return check on fcntl.

---
 components/dfs/src/dfs_posix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index 3c3c511d74..3d863c4f98 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -449,7 +449,7 @@ int fcntl(int fildes, int cmd, ...)
     }
     else ret = -EBADF;
 
-    if (ret != 0)
+    if (ret < 0)
     {
         rt_set_errno(ret);
         ret = -1;