From patchwork Tue Oct 20 05:41:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 1384627 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=nxp.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CFjKp33L6z9sRk for ; Tue, 20 Oct 2020 16:46:22 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391032AbgJTFqU (ORCPT ); Tue, 20 Oct 2020 01:46:20 -0400 Received: from inva021.nxp.com ([92.121.34.21]:41312 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730779AbgJTFqT (ORCPT ); Tue, 20 Oct 2020 01:46:19 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 5863C20194F; Tue, 20 Oct 2020 07:46:17 +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 0119720053D; Tue, 20 Oct 2020 07:46:13 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id B6BA2402BE; Tue, 20 Oct 2020 07:46:06 +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: [RESEND PATCH V2 2/3] pwm: imx27: Use dev_err_probe() to simplify error handling Date: Tue, 20 Oct 2020 13:41:06 +0800 Message-Id: <1603172467-19786-2-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1603172467-19786-1-git-send-email-Anson.Huang@nxp.com> References: <1603172467-19786-1-git-send-email-Anson.Huang@nxp.com> MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP 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 Acked-by: Uwe Kleine-König --- 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;