From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B156C46469 for ; Wed, 12 Sep 2018 14:42:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0F22420866 for ; Wed, 12 Sep 2018 14:42:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0F22420866 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lxorguk.ukuu.org.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728102AbeILTrA (ORCPT ); Wed, 12 Sep 2018 15:47:00 -0400 Received: from www.llwyncelyn.cymru ([82.70.14.225]:55788 "EHLO fuzix.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726879AbeILTrA (ORCPT ); Wed, 12 Sep 2018 15:47:00 -0400 Received: from alans-desktop (82-70-14-226.dsl.in-addr.zen.co.uk [82.70.14.226]) by fuzix.org (8.15.2/8.15.2) with ESMTP id w8CEfKOJ013921; Wed, 12 Sep 2018 15:41:20 +0100 Date: Wed, 12 Sep 2018 15:41:19 +0100 From: Alan Cox To: Jaejoong Kim Cc: linux-um@lists.infradead.org, netdev@vger.kernel.org, linux-mmc@vger.kernel.org, linux-s390@vger.kernel.org, devel@driverdev.osuosl.org, greybus-dev@lists.linaro.org, linuxppc-dev@lists.ozlabs.org, linux-serial@vger.kernel.org, sparclinux@vger.kernel.org, linux-usb@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Jiri Slaby Subject: Re: [PATCH 00/25] Change tty_port(standard)_install's return type Message-ID: <20180912154119.1fce639d@alans-desktop> In-Reply-To: <1536029091-4426-1-git-send-email-climbbb.kim@gmail.com> References: <1536029091-4426-1-git-send-email-climbbb.kim@gmail.com> Organization: Intel Corporation X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 4 Sep 2018 11:44:26 +0900 Jaejoong Kim wrote: > Many drivers with tty use the tty_stand_install(). But, there is no > need to handle the error, since it always returns 0. And what happens if another change means it can fail again. It's just a property of the current implementation that it can't. It used to fail. This seems to be a ton of unneccessary churn that will end up just having to be reversed again some day in the future. Alan