From cea61291e4254b19bdc32cf232535e18728e01f8 Mon Sep 17 00:00:00 2001
From: tangyuxin <462747508@qq.com>
Date: Fri, 20 Jul 2018 15:30:08 +0800
Subject: [PATCH] =?UTF-8?q?[components][dfs]=E4=BF=AE=E5=A4=8Dlist=5Ffd?=
 =?UTF-8?q?=E6=89=93=E5=8D=B0=E4=B9=B1=E7=A0=81=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 components/dfs/src/dfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/dfs/src/dfs.c b/components/dfs/src/dfs.c
index 31102f49b..46e3e5122 100644
--- a/components/dfs/src/dfs.c
+++ b/components/dfs/src/dfs.c
@@ -540,7 +540,7 @@ int list_fd(void)
     {
         struct dfs_fd *fd = fd_table->fds[index];
 
-        if (fd != RT_NULL)
+        if (fd && fd->fops)
         {
             rt_kprintf("%2d ", index);
             if (fd->type == FT_DIRECTORY)    rt_kprintf("%-7.7s ", "dir");
-- 
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