From patchwork Tue Sep 28 01:38:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12521365 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61D07C433F5 for ; Tue, 28 Sep 2021 01:39:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4304061262 for ; Tue, 28 Sep 2021 01:39:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238518AbhI1Bk5 (ORCPT ); Mon, 27 Sep 2021 21:40:57 -0400 Received: from mx22.baidu.com ([220.181.50.185]:47650 "EHLO baidu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S238504AbhI1Bkz (ORCPT ); Mon, 27 Sep 2021 21:40:55 -0400 Received: from BC-Mail-Ex11.internal.baidu.com (unknown [172.31.51.51]) by Forcepoint Email with ESMTPS id 6AC286F5AA31CB919241; Tue, 28 Sep 2021 09:39:15 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-Ex11.internal.baidu.com (172.31.51.51) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Tue, 28 Sep 2021 09:39:14 +0800 Received: from LAPTOP-UKSR4ENP.internal.baidu.com (172.31.63.8) by BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Tue, 28 Sep 2021 09:39:14 +0800 From: Cai Huoqing To: CC: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "Vladimir Zapolskiy" , Marcus Folkesson , Maxime Coquelin , Alexandre Torgue , , , , Subject: [PATCH v2 2/8] iio: dac: lpc18xx_dac: Make use of the helper function dev_err_probe() Date: Tue, 28 Sep 2021 09:38:55 +0800 Message-ID: <20210928013902.1341-2-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210928013902.1341-1-caihuoqing@baidu.com> References: <20210928013902.1341-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex24.internal.baidu.com (172.31.51.18) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. Using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by: Cai Huoqing --- v1->v2: Remove the separate line of PTR_ERR(). drivers/iio/dac/lpc18xx_dac.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c index 9e38607a189e..afb37647b035 100644 --- a/drivers/iio/dac/lpc18xx_dac.c +++ b/drivers/iio/dac/lpc18xx_dac.c @@ -121,16 +121,14 @@ static int lpc18xx_dac_probe(struct platform_device *pdev) return PTR_ERR(dac->base); dac->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(dac->clk)) { - dev_err(&pdev->dev, "error getting clock\n"); - return PTR_ERR(dac->clk); - } + if (IS_ERR(dac->clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(dac->clk), + "error getting clock\n"); dac->vref = devm_regulator_get(&pdev->dev, "vref"); - if (IS_ERR(dac->vref)) { - dev_err(&pdev->dev, "error getting regulator\n"); - return PTR_ERR(dac->vref); - } + if (IS_ERR(dac->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref), + "error getting regulator\n"); indio_dev->name = dev_name(&pdev->dev); indio_dev->info = &lpc18xx_dac_info;