__kho_debugfs_fdt_add
err = __kho_debugfs_fdt_add(&dbg->fdt_list, dir, "fdt", fdt);
err = __kho_debugfs_fdt_add(&dbg->fdt_list, sub_fdt_dir, name,
return __kho_debugfs_fdt_add(&dbg->fdt_list, dir, name, fdt);