[dfs] fix the issue of stat "/.." of lwext4
@@ -404,6 +404,13 @@ up_one:
if ((dst != fullpath) && (*dst == '/'))
*dst = '\0';
+ /* final check fullpath is not empty, for the special path of lwext "/.." */
+ if ('\0' == fullpath[0])
+ {
+ fullpath[0] = '/';
+ fullpath[1] = '\0';
+ }
+
return fullpath;
}
RTM_EXPORT(dfs_normalize_path);
