romfs文件系统挂载

                        if (dfs_mount(RT_NULL, "/sd", "rom", 0, &(romfs_root)) == 0)
                        {
                                LOG_I("ROM file system initializated!\n");
                        }
                        else
                        {
                                LOG_I("ROM file system initializate failed!\n");
                        }

(file->data != RT_NULL) assertion failed at function:_dfs_lfs_close, line number:689