git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2539 bbd45198-f89e-11dd-88c7-29a3b14d5316
@@ -86,6 +86,13 @@ int close(int fd)
return -1;
}
+ /* check dfs_fd valid or not */
+ if (d->path == RT_NULL || d->ref_count == 0)
+ {
+ rt_set_errno(-DFS_STATUS_EBADF);
+ return -1;
+ }
+
result = dfs_file_close(d);
fd_put(d);