From 59c128c0733c4b3ffa61558bb2ce8bf981c78adb Mon Sep 17 00:00:00 2001
From: Bernard Xiong <root@VM-152-115-ubuntu.(none)>
Date: Thu, 31 Jul 2014 09:30:18 +0800
Subject: [libc] fix compiling warning

---
 components/dfs/src/dfs_posix.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'components/dfs')

diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index 96139837e9..a7d6159a1c 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -537,12 +537,17 @@ struct dirent *readdir(DIR *d)
     if (fd == RT_NULL)
     {
         rt_set_errno(-DFS_STATUS_EBADF);
-
         return RT_NULL;
     }
 
-    if (!d->num ||
-        (d->cur += ((struct dirent *)(d->buf + d->cur))->d_reclen) >= d->num)
+    if (d->num)
+    {
+        struct dirent* dirent_ptr;
+        dirent_ptr = (struct dirent*)&d->buf[d->cur];
+        d->cur += dirent_ptr->d_reclen;
+    }
+
+    if (!d->num || d->cur >= d->num)
     {
         /* get a new entry */
         result = dfs_file_getdents(fd,
-- 
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