From patchwork Mon Jul 8 12:33:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fuqian Huang X-Patchwork-Id: 1129060 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="WFxZsfom"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45j4d61Dscz9sP0 for ; Mon, 8 Jul 2019 22:34:02 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730766AbfGHMeB (ORCPT ); Mon, 8 Jul 2019 08:34:01 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:39670 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727373AbfGHMeA (ORCPT ); Mon, 8 Jul 2019 08:34:00 -0400 Received: by mail-pf1-f196.google.com with SMTP id j2so7552908pfe.6; Mon, 08 Jul 2019 05:34:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=M47eeUNCN4SVfJom0OnKhMR7q6xYFkcCTnLQCxdI5ls=; b=WFxZsfomA29eOc/Rm/2BZReRzhSvw45FcB4cFwTAjWKoGF8d9mLHcKgTNipt38kg0m +CwdcFESFE6YiVHuAM5DM9/S1wBzDe1Z3tZ2Nvi9Gtmuni78moINmU8+2bei2cuCf5tF khW2yHX3NeOQe4GYXeaAZvhGS/mcuDvq4ZSG+VP8CPs5ntbOl7lOcucnupCpRuV+aQwf GObhIfe+jx1UhCMc1IIi10sJJKXJNBfKQMhxumt3AYah0i8sXn02ifBoetlAQwYH00op HRmDL3PAQzoLPy6X4+xClmEwOrz9astlnt+4PmfpvcNrtCOXngZnn+5aRVlj4HeMJloq T1Gg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=M47eeUNCN4SVfJom0OnKhMR7q6xYFkcCTnLQCxdI5ls=; b=SxUz3sU3ye2uxku5tQgUW3D6A/r1kodLbChQKnRZiXusPrHElz4mOrocqbxPs5bJal fG0EbuNSYbLZAJedoVhE7rMLwPNRtLydNFEQWdaiFufRQpCUyu40nxmvC06V4Kkr1G1x TTbatMHDUhzk5ZF9h60RcXwcFFQNH+NEKohTzQI+14l1/3rnxe1SHIDLXkP2ODHKMmSg mxZvo5KCIeq28FvKNpNk6PdRdqVUSqJ3yANvtET9o/MGKQK+lcbZEiGv6HfgTVy3w+cB e02u51KlSJOqiJS3e96vJi1zkRYKJNvXHfkOJhJXKkp+PFzE8hDu8UP/P/NDqyvQHXtB ODxg== X-Gm-Message-State: APjAAAXKvWpMmUQ77BJ6t/0vFwtJMcLf6w016AQykIzKxCQkZoq7UVR3 /n54Tff1PggU/rauoElDt5s= X-Google-Smtp-Source: APXvYqwT85qiQbjKYhVI6Utl22oZLWmhnzAVfEG2zxIim+b4MbMsEhdmIj6QoWsXZOx3ojsq50zs9g== X-Received: by 2002:a17:90a:a489:: with SMTP id z9mr24384234pjp.24.1562589240312; Mon, 08 Jul 2019 05:34:00 -0700 (PDT) Received: from hfq-skylake.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.googlemail.com with ESMTPSA id i124sm38232388pfe.61.2019.07.08.05.33.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Jul 2019 05:33:59 -0700 (PDT) From: Fuqian Huang Cc: Will Deacon , Lorenzo Pieralisi , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Fuqian Huang Subject: [PATCH 11/14] PCI: Replace devm_add_action() followed by failure action with devm_add_action_or_reset() Date: Mon, 8 Jul 2019 20:33:54 +0800 Message-Id: <20190708123354.12127-1-huangfq.daxian@gmail.com> X-Mailer: git-send-email 2.11.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org devm_add_action_or_reset() is introduced as a helper function which internally calls devm_add_action(). If devm_add_action() fails then it will execute the action mentioned and return the error code. This reduce source code size (avoid writing the action twice) and reduce the likelyhood of bugs. Signed-off-by: Fuqian Huang --- drivers/pci/controller/pci-host-common.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c index c742881b5061..c8cb9c5188a4 100644 --- a/drivers/pci/controller/pci-host-common.c +++ b/drivers/pci/controller/pci-host-common.c @@ -43,9 +43,8 @@ static struct pci_config_window *gen_pci_init(struct device *dev, goto err_out; } - err = devm_add_action(dev, gen_pci_unmap_cfg, cfg); + err = devm_add_action_or_reset(dev, gen_pci_unmap_cfg, cfg); if (err) { - gen_pci_unmap_cfg(cfg); goto err_out; } return cfg;