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=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 B373FC433E0 for ; Tue, 11 Aug 2020 06:29:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 937142076B for ; Tue, 11 Aug 2020 06:29:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728095AbgHKG3d (ORCPT ); Tue, 11 Aug 2020 02:29:33 -0400 Received: from inva021.nxp.com ([92.121.34.21]:56580 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728057AbgHKG3c (ORCPT ); Tue, 11 Aug 2020 02:29:32 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 364D0201E51; Tue, 11 Aug 2020 08:29:31 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id BE57D201E44; Tue, 11 Aug 2020 08:29:26 +0200 (CEST) Received: from 10.192.242.69 (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EBB6740243; Tue, 11 Aug 2020 08:29:20 +0200 (CEST) From: Anson Huang To: thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de, lee.jones@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH V2 2/3] pwm: imx27: Use dev_err_probe() to simplify error handling Date: Tue, 11 Aug 2020 14:24:31 +0800 Message-Id: <1597127072-26365-2-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1597127072-26365-1-git-send-email-Anson.Huang@nxp.com> References: <1597127072-26365-1-git-send-email-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org dev_err_probe() can reduce code size, uniform error handling and record the defer probe reason etc., use it to simplify the code. Signed-off-by: Anson Huang --- changes since V1: - remove redundant return value print. --- drivers/pwm/pwm-imx27.c | 25 ++++++------------------- 1 file changed, 6 insertions(+), 19 deletions(-) diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c index c50d453..ceaed03 100644 --- a/drivers/pwm/pwm-imx27.c +++ b/drivers/pwm/pwm-imx27.c @@ -315,27 +315,14 @@ static int pwm_imx27_probe(struct platform_device *pdev) platform_set_drvdata(pdev, imx); imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); - if (IS_ERR(imx->clk_ipg)) { - int ret = PTR_ERR(imx->clk_ipg); - - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, - "getting ipg clock failed with %d\n", - ret); - return ret; - } + if (IS_ERR(imx->clk_ipg)) + return dev_err_probe(&pdev->dev, PTR_ERR(imx->clk_ipg), + "getting ipg clock failed\n"); imx->clk_per = devm_clk_get(&pdev->dev, "per"); - if (IS_ERR(imx->clk_per)) { - int ret = PTR_ERR(imx->clk_per); - - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, - "failed to get peripheral clock: %d\n", - ret); - - return ret; - } + if (IS_ERR(imx->clk_per)) + return dev_err_probe(&pdev->dev, PTR_ERR(imx->clk_per), + "failed to get peripheral clock\n"); imx->chip.ops = &pwm_imx27_ops; imx->chip.dev = &pdev->dev; -- 2.7.4