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: 11845731 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 1AA74C433E7 for ; Tue, 20 Oct 2020 05:47:55 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9E73E2225F for ; Tue, 20 Oct 2020 05:47:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Av+PZme6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E73E2225F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=upJEvUrZwNInXL/DKM8zRqphbDvH0R79+hhHNYY+pa0=; b=Av+PZme6+bcoZTYqdFvI5KIEO bHIcNarRTHG7l7ArN1320pzLVib7WpTfoM0HxbqUeKXBqtwwJB6XTMWjaLXQZSqXONR9QUBsqlXn8 fi/FpiOjNYmCMeBtRJ/FYSqOiIm+HW7S1WPFSbRIYr6OZheeJh+X4iqMTyfIwVfdEB6xQucJp09EL OAEzZ5GNd67BtyYdy0jbGDqAjEovI3chTdAnU4eJA2zicJY+9yHFH54Yh2C0cYmDscSoL52CmHzhW gcwg7BM3uRAQpByxXkaC9swxiUFtvQ/m5CfTc+/gPcsepy3F9yYllN7pIhgOFW7RfE21+OzK1IK+v 8RzfobNeQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kUkTa-0000MG-KZ; Tue, 20 Oct 2020 05:46:26 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kUkTV-0000K2-QH for linux-arm-kernel@lists.infradead.org; Tue, 20 Oct 2020 05:46:22 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201020_014621_944726_8C613F0D X-CRM114-Status: GOOD ( 13.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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;