From patchwork Fri Oct 8 09:28:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544745 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 24296C433EF for ; Fri, 8 Oct 2021 09:31:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E72AF60F39 for ; Fri, 8 Oct 2021 09:31:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E72AF60F39 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=arTQcCdXJtcnWR7VDjHitKcywLn4q/plMhYAJuA9IJo=; b=fok73zbWU9Hmpu LOlgXEH8o3msxYaeGCh4pRKj8aeNh8dwxr1J7UV3B1s+TybPJCqIKUUX1x2s2vf0zasX0tr+wSUWi ePtZiS3T0008HWjBylzTNureMODSb4eqE96vdjrbGbbSkIvo5O/ZPrX1UNHu0PIK9f2srK8zl2Vdc 7JwX+noYC0FiRhpB8PyqcpcmMSpQAQrOY/X4XTfMta5xdY2uu0Wv2VD02S9vIhJbY4g349SN5/h0y 4cVeqYVlP1u+MVa/BXTomGBczDk5t+o+cUJb1nwPq4lABYJEpbSp2Qo0YGhQlrPkWGV2zy/yvwRxM WDQurN/ldnJqPKxP38Wg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmCI-002Bre-8b; Fri, 08 Oct 2021 09:29:46 +0000 Received: from mx22.baidu.com ([220.181.50.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmBf-002Ba1-3r; Fri, 08 Oct 2021 09:29:10 +0000 Received: from BJHW-Mail-Ex11.internal.baidu.com (unknown [10.127.64.34]) by Forcepoint Email with ESMTPS id 01DB11B09D55DF7346B2; Fri, 8 Oct 2021 17:28:59 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex11.internal.baidu.com (10.127.64.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 8 Oct 2021 17:28:58 +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; Fri, 8 Oct 2021 17:28:57 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 1/9] iio: adc: ab8500-gpadc: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:49 +0800 Message-ID: <20211008092858.495-1-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022907_379427_AA3B4153 X-CRM114-Status: GOOD ( 10.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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(). v2: Reviewed-by: Linus Walleij v2->v3: Handle platform_get_irq_byname() that returns -EPROBE_DEFER. drivers/iio/adc/ab8500-gpadc.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c index 7b5212ba5501..4c46a201d4ef 100644 --- a/drivers/iio/adc/ab8500-gpadc.c +++ b/drivers/iio/adc/ab8500-gpadc.c @@ -1103,17 +1103,15 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) return ret; gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END"); - if (gpadc->irq_sw < 0) { - dev_err(dev, "failed to get platform sw_conv_end irq\n"); - return gpadc->irq_sw; - } + if (gpadc->irq_sw < 0) + return dev_err_probe(dev, gpadc->irq_sw, + "failed to get platform sw_conv_end irq\n"); if (is_ab8500(gpadc->ab8500)) { gpadc->irq_hw = platform_get_irq_byname(pdev, "HW_CONV_END"); - if (gpadc->irq_hw < 0) { - dev_err(dev, "failed to get platform hw_conv_end irq\n"); - return gpadc->irq_hw; - } + if (gpadc->irq_hw < 0) + return dev_err_probe(dev, gpadc->irq_hw, + "failed to get platform hw_conv_end irq\n"); } else { gpadc->irq_hw = 0; } @@ -1146,11 +1144,9 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) /* The VTVout LDO used to power the AB8500 GPADC */ gpadc->vddadc = devm_regulator_get(dev, "vddadc"); - if (IS_ERR(gpadc->vddadc)) { - ret = PTR_ERR(gpadc->vddadc); - dev_err(dev, "failed to get vddadc\n"); - return ret; - } + if (IS_ERR(gpadc->vddadc)) + return dev_err_probe(dev, PTR_ERR(gpadc->vddadc), + "failed to get vddadc\n"); ret = regulator_enable(gpadc->vddadc); if (ret) { From patchwork Fri Oct 8 09:28:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544743 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 AD68DC433EF for ; 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Fri, 8 Oct 2021 17:29:02 +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; Fri, 8 Oct 2021 17:29:01 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 2/9] iio: adc: imx7d_adc: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:50 +0800 Message-ID: <20211008092858.495-2-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex10_2021-10-08 17:29:02:534 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022907_379893_2155FC09 X-CRM114-Status: UNSURE ( 9.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 --- v3->v4: Handle platform_get_irq() that returns -EPROBE_DEFER. drivers/iio/adc/imx7d_adc.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c index 4969a5f941e3..d69d8b7d8456 100644 --- a/drivers/iio/adc/imx7d_adc.c +++ b/drivers/iio/adc/imx7d_adc.c @@ -493,22 +493,16 @@ static int imx7d_adc_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) - return irq; + return dev_err_probe(dev, irq, "Failed getting irq\n"); info->clk = devm_clk_get(dev, "adc"); - if (IS_ERR(info->clk)) { - ret = PTR_ERR(info->clk); - dev_err(dev, "Failed getting clock, err = %d\n", ret); - return ret; - } + if (IS_ERR(info->clk)) + return dev_err_probe(dev, PTR_ERR(info->clk), "Failed getting clock\n"); info->vref = devm_regulator_get(dev, "vref"); - if (IS_ERR(info->vref)) { - ret = PTR_ERR(info->vref); - dev_err(dev, - "Failed getting reference voltage, err = %d\n", ret); - return ret; - } + if (IS_ERR(info->vref)) + return dev_err_probe(dev, PTR_ERR(info->vref), + "Failed getting reference voltage\n"); platform_set_drvdata(pdev, indio_dev); From patchwork Fri Oct 8 09:28:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544741 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 7B392C433FE for ; Fri, 8 Oct 2021 09:31:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4BC7D61019 for ; Fri, 8 Oct 2021 09:31:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4BC7D61019 Authentication-Results: mail.kernel.org; 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Fri, 08 Oct 2021 09:29:14 +0000 Received: from mx22.baidu.com ([220.181.50.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmBf-002Bat-3y; Fri, 08 Oct 2021 09:29:09 +0000 Received: from BJHW-Mail-Ex13.internal.baidu.com (unknown [10.127.64.36]) by Forcepoint Email with ESMTPS id 8ED51C1322428B822802; Fri, 8 Oct 2021 17:29:05 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex13.internal.baidu.com (10.127.64.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 8 Oct 2021 17:29:05 +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; Fri, 8 Oct 2021 17:29:04 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 3/9] iio: adc: lpc18xx_adc: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:51 +0800 Message-ID: <20211008092858.495-3-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex13_2021-10-08 17:29:05:603 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022907_376353_4CFE01DF X-CRM114-Status: UNSURE ( 9.35 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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/adc/lpc18xx_adc.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/iio/adc/lpc18xx_adc.c b/drivers/iio/adc/lpc18xx_adc.c index 3566990ae87d..440bf28e0605 100644 --- a/drivers/iio/adc/lpc18xx_adc.c +++ b/drivers/iio/adc/lpc18xx_adc.c @@ -137,19 +137,17 @@ static int lpc18xx_adc_probe(struct platform_device *pdev) return PTR_ERR(adc->base); adc->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(adc->clk)) { - dev_err(&pdev->dev, "error getting clock\n"); - return PTR_ERR(adc->clk); - } + if (IS_ERR(adc->clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(adc->clk), + "error getting clock\n"); rate = clk_get_rate(adc->clk); clkdiv = DIV_ROUND_UP(rate, LPC18XX_ADC_CLK_TARGET); adc->vref = devm_regulator_get(&pdev->dev, "vref"); - if (IS_ERR(adc->vref)) { - dev_err(&pdev->dev, "error getting regulator\n"); - return PTR_ERR(adc->vref); - } + if (IS_ERR(adc->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(adc->vref), + "error getting regulator\n"); indio_dev->name = dev_name(&pdev->dev); indio_dev->info = &lpc18xx_adc_info; From patchwork Fri Oct 8 09:28:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544747 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 604DAC433F5 for ; Fri, 8 Oct 2021 09:31:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 30B9D60ED7 for ; Fri, 8 Oct 2021 09:31:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 30B9D60ED7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; 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Fri, 08 Oct 2021 09:30:10 +0000 Received: from mx22.baidu.com ([220.181.50.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmBh-002BcJ-JT; Fri, 08 Oct 2021 09:29:11 +0000 Received: from BJHW-Mail-Ex14.internal.baidu.com (unknown [10.127.64.37]) by Forcepoint Email with ESMTPS id 990FF4FF3CDB6B75BF7F; Fri, 8 Oct 2021 17:29:08 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex14.internal.baidu.com (10.127.64.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 8 Oct 2021 17:29:08 +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; Fri, 8 Oct 2021 17:29:07 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 4/9] iio: adc: max1118: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:52 +0800 Message-ID: <20211008092858.495-4-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex14_2021-10-08 17:29:08:562 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022909_843424_EB1D8638 X-CRM114-Status: UNSURE ( 9.89 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 --- drivers/iio/adc/max1118.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c index 8cec9d949083..a41bc570be21 100644 --- a/drivers/iio/adc/max1118.c +++ b/drivers/iio/adc/max1118.c @@ -221,10 +221,9 @@ static int max1118_probe(struct spi_device *spi) if (id->driver_data == max1118) { adc->reg = devm_regulator_get(&spi->dev, "vref"); - if (IS_ERR(adc->reg)) { - dev_err(&spi->dev, "failed to get vref regulator\n"); - return PTR_ERR(adc->reg); - } + if (IS_ERR(adc->reg)) + return dev_err_probe(&spi->dev, PTR_ERR(adc->reg), + "failed to get vref regulator\n"); ret = regulator_enable(adc->reg); if (ret) return ret; From patchwork Fri Oct 8 09:28:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544749 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 BAA09C433F5 for ; Fri, 8 Oct 2021 09:32:43 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 8BA3860F90 for ; Fri, 8 Oct 2021 09:32:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8BA3860F90 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cBbuWOzFHRsW6yT5+9XiFnxgkWFaAKQlk0kf4R/uxKE=; b=wpbrr6sUd9HeK3 rxJG70VCs82p5PEgAkpnURSWlmgDegqoXzZqci1F9KIUNtckQxIi9trKBXKGqenflejf8fhtZR8gM 3ocs3bFOQuGHlBgPPVxtjiOY0Kdx/BJWQzv5C8g/jiXcwHPrjgvTQIu1+ZS/+QbVB//Z3twpoteWL OWeOgWI6nKRqiiqrgwhshJ/pfA2rWF8uqhG0+rSHfKSM2m3j2KxF4QA3PII6GU0cQSvwP6jaM1rpI JmYpsh3wpPBFZ0sUbnpPgLlLrOe9DhQV4gCgjl8PTiAiFl45jXIFVbIqLSVzpQXoV7fK+Zu/skD8a 6ebEpMrySSZGrrGb7gZQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmD9-002CLf-R1; Fri, 08 Oct 2021 09:30:40 +0000 Received: from mx22.baidu.com ([220.181.50.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmBk-002Be3-Ll; Fri, 08 Oct 2021 09:29:14 +0000 Received: from BJHW-Mail-Ex15.internal.baidu.com (unknown [10.127.64.38]) by Forcepoint Email with ESMTPS id A04073DEFAA9E05DD8AE; Fri, 8 Oct 2021 17:29:11 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex15.internal.baidu.com (10.127.64.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 8 Oct 2021 17:29:11 +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; Fri, 8 Oct 2021 17:29:10 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 5/9] iio: adc: max1241: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:53 +0800 Message-ID: <20211008092858.495-5-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex15_2021-10-08 17:29:11:619 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022912_956274_F85DE03E X-CRM114-Status: UNSURE ( 9.62 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 --- v3->v4: Add a dev_err_probe() message to the devm_gpiod_get_optional(). drivers/iio/adc/max1241.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c index b60f8448f21a..a5afd84af58b 100644 --- a/drivers/iio/adc/max1241.c +++ b/drivers/iio/adc/max1241.c @@ -148,10 +148,9 @@ static int max1241_probe(struct spi_device *spi) mutex_init(&adc->lock); adc->vdd = devm_regulator_get(dev, "vdd"); - if (IS_ERR(adc->vdd)) { - dev_err(dev, "failed to get vdd regulator\n"); - return PTR_ERR(adc->vdd); - } + if (IS_ERR(adc->vdd)) + return dev_err_probe(dev, PTR_ERR(adc->vdd), + "failed to get vdd regulator\n"); ret = regulator_enable(adc->vdd); if (ret) @@ -164,10 +163,9 @@ static int max1241_probe(struct spi_device *spi) } adc->vref = devm_regulator_get(dev, "vref"); - if (IS_ERR(adc->vref)) { - dev_err(dev, "failed to get vref regulator\n"); - return PTR_ERR(adc->vref); - } + if (IS_ERR(adc->vref)) + return dev_err_probe(dev, PTR_ERR(adc->vref), + "failed to get vref regulator\n"); ret = regulator_enable(adc->vref); if (ret) @@ -182,7 +180,8 @@ static int max1241_probe(struct spi_device *spi) adc->shutdown = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); if (IS_ERR(adc->shutdown)) - return PTR_ERR(adc->shutdown); + return dev_err_probe(dev, PTR_ERR(adc->shutdown), + "cannot get shutdown gpio\n"); if (adc->shutdown) dev_dbg(dev, "shutdown pin passed, low-power mode enabled"); From patchwork Fri Oct 8 09:28:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544807 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 87305C433EF for ; Fri, 8 Oct 2021 09:33:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5268760FDC for ; 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Fri, 8 Oct 2021 17:29:13 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 6/9] iio: adc: meson_saradc: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:54 +0800 Message-ID: <20211008092858.495-6-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex12_2021-10-08 17:29:14:824 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022916_376496_E46E0A2A X-CRM114-Status: GOOD ( 11.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 Reviewed-by: Martin Blumenstingl Tested-by: Martin Blumenstingl #Meson8b Odroid-C1 --- v1->v2: Remove the separate line of PTR_ERR(). drivers/iio/adc/meson_saradc.c | 39 +++++++++++++++------------------- 1 file changed, 17 insertions(+), 22 deletions(-) diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 705d5e11a54b..62cc6fb0ef85 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -1230,35 +1230,31 @@ static int meson_sar_adc_probe(struct platform_device *pdev) return ret; priv->clkin = devm_clk_get(&pdev->dev, "clkin"); - if (IS_ERR(priv->clkin)) { - dev_err(&pdev->dev, "failed to get clkin\n"); - return PTR_ERR(priv->clkin); - } + if (IS_ERR(priv->clkin)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->clkin), + "failed to get clkin\n"); priv->core_clk = devm_clk_get(&pdev->dev, "core"); - if (IS_ERR(priv->core_clk)) { - dev_err(&pdev->dev, "failed to get core clk\n"); - return PTR_ERR(priv->core_clk); - } + if (IS_ERR(priv->core_clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->core_clk), + "failed to get core clk\n"); priv->adc_clk = devm_clk_get(&pdev->dev, "adc_clk"); if (IS_ERR(priv->adc_clk)) { - if (PTR_ERR(priv->adc_clk) == -ENOENT) { + if (PTR_ERR(priv->adc_clk) == -ENOENT) priv->adc_clk = NULL; - } else { - dev_err(&pdev->dev, "failed to get adc clk\n"); - return PTR_ERR(priv->adc_clk); - } + else + return dev_err_probe(&pdev->dev, PTR_ERR(priv->adc_clk), + "failed to get adc clk\n"); } priv->adc_sel_clk = devm_clk_get(&pdev->dev, "adc_sel"); if (IS_ERR(priv->adc_sel_clk)) { - if (PTR_ERR(priv->adc_sel_clk) == -ENOENT) { + if (PTR_ERR(priv->adc_sel_clk) == -ENOENT) priv->adc_sel_clk = NULL; - } else { - dev_err(&pdev->dev, "failed to get adc_sel clk\n"); - return PTR_ERR(priv->adc_sel_clk); - } + else + return dev_err_probe(&pdev->dev, PTR_ERR(priv->adc_sel_clk), + "failed to get adc_sel clk\n"); } /* on pre-GXBB SoCs the SAR ADC itself provides the ADC clock: */ @@ -1269,10 +1265,9 @@ static int meson_sar_adc_probe(struct platform_device *pdev) } priv->vref = devm_regulator_get(&pdev->dev, "vref"); - if (IS_ERR(priv->vref)) { - dev_err(&pdev->dev, "failed to get vref regulator\n"); - return PTR_ERR(priv->vref); - } + if (IS_ERR(priv->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->vref), + "failed to get vref regulator\n"); priv->calibscale = MILLION; From patchwork Fri Oct 8 09:28:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544809 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 52021C433F5 for ; Fri, 8 Oct 2021 09:33:59 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2078560F90 for ; Fri, 8 Oct 2021 09:33:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 2078560F90 Authentication-Results: mail.kernel.org; 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Fri, 08 Oct 2021 09:32:03 +0000 Received: from mx22.baidu.com ([220.181.50.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmBq-002Bgz-RS; Fri, 08 Oct 2021 09:29:20 +0000 Received: from BJHW-Mail-Ex09.internal.baidu.com (unknown [10.127.64.32]) by Forcepoint Email with ESMTPS id D85E692DF46822C05ADC; Fri, 8 Oct 2021 17:29:17 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex09.internal.baidu.com (10.127.64.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 8 Oct 2021 17:29:17 +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; Fri, 8 Oct 2021 17:29:16 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 7/9] iio: adc: qcom-pm8xxx-xoadc: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:55 +0800 Message-ID: <20211008092858.495-7-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex09_2021-10-08 17:29:17:897 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022919_076489_4396FD7F X-CRM114-Status: GOOD ( 11.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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. BTW, change the return value from 'ENXIO' to 'ENODEV', perfer ENODEV which means no such device. Signed-off-by: Cai Huoqing Reviewed-by: Linus Walleij --- v2->v3: Update the changelog. drivers/iio/adc/qcom-pm8xxx-xoadc.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/qcom-pm8xxx-xoadc.c b/drivers/iio/adc/qcom-pm8xxx-xoadc.c index 0610bf254771..21d7eff645c3 100644 --- a/drivers/iio/adc/qcom-pm8xxx-xoadc.c +++ b/drivers/iio/adc/qcom-pm8xxx-xoadc.c @@ -910,16 +910,15 @@ static int pm8xxx_xoadc_probe(struct platform_device *pdev) map = dev_get_regmap(dev->parent, NULL); if (!map) { dev_err(dev, "parent regmap unavailable.\n"); - return -ENXIO; + return -ENODEV; } adc->map = map; /* Bring up regulator */ adc->vref = devm_regulator_get(dev, "xoadc-ref"); - if (IS_ERR(adc->vref)) { - dev_err(dev, "failed to get XOADC VREF regulator\n"); - return PTR_ERR(adc->vref); - } + if (IS_ERR(adc->vref)) + return dev_err_probe(dev, PTR_ERR(adc->vref), + "failed to get XOADC VREF regulator\n"); ret = regulator_enable(adc->vref); if (ret) { dev_err(dev, "failed to enable XOADC VREF regulator\n"); From patchwork Fri Oct 8 09:28:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544811 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 2233BC433EF for ; Fri, 8 Oct 2021 09:34:24 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E52EB60FDC for ; Fri, 8 Oct 2021 09:34:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E52EB60FDC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; 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Fri, 08 Oct 2021 09:29:23 +0000 Received: from BC-Mail-Ex15.internal.baidu.com (unknown [172.31.51.55]) by Forcepoint Email with ESMTPS id F0B3D676A9121E31F75; Fri, 8 Oct 2021 17:29:20 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-Ex15.internal.baidu.com (172.31.51.55) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Fri, 8 Oct 2021 17:29:20 +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; Fri, 8 Oct 2021 17:29:19 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 8/9] iio: adc: rockchip_saradc: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:56 +0800 Message-ID: <20211008092858.495-8-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022922_603685_8EF34817 X-CRM114-Status: GOOD ( 10.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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(). v3->v4: *Handle devm_reset_control_get_exclusive() by dev_err_probe(). *Handle platform_get_irq() that returns -EPROBE_DEFER. drivers/iio/adc/rockchip_saradc.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c index a56a0d7337ca..14b8df4ca9c8 100644 --- a/drivers/iio/adc/rockchip_saradc.c +++ b/drivers/iio/adc/rockchip_saradc.c @@ -360,7 +360,8 @@ static int rockchip_saradc_probe(struct platform_device *pdev) if (IS_ERR(info->reset)) { ret = PTR_ERR(info->reset); if (ret != -ENOENT) - return ret; + return dev_err_probe(&pdev->dev, ret, + "failed to get saradc-apb\n"); dev_dbg(&pdev->dev, "no reset control found\n"); info->reset = NULL; @@ -370,7 +371,7 @@ static int rockchip_saradc_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) - return irq; + return dev_err_probe(&pdev->dev, irq, "failed to get irq\n"); ret = devm_request_irq(&pdev->dev, irq, rockchip_saradc_isr, 0, dev_name(&pdev->dev), info); @@ -380,23 +381,19 @@ static int rockchip_saradc_probe(struct platform_device *pdev) } info->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); - if (IS_ERR(info->pclk)) { - dev_err(&pdev->dev, "failed to get pclk\n"); - return PTR_ERR(info->pclk); - } + if (IS_ERR(info->pclk)) + return dev_err_probe(&pdev->dev, PTR_ERR(info->pclk), + "failed to get pclk\n"); info->clk = devm_clk_get(&pdev->dev, "saradc"); - if (IS_ERR(info->clk)) { - dev_err(&pdev->dev, "failed to get adc clock\n"); - return PTR_ERR(info->clk); - } + if (IS_ERR(info->clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(info->clk), + "failed to get adc clock\n"); info->vref = devm_regulator_get(&pdev->dev, "vref"); - if (IS_ERR(info->vref)) { - dev_err(&pdev->dev, "failed to get regulator, %ld\n", - PTR_ERR(info->vref)); - return PTR_ERR(info->vref); - } + if (IS_ERR(info->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(info->vref), + "failed to get regulator\n"); if (info->reset) rockchip_saradc_reset_controller(info->reset); From patchwork Fri Oct 8 09:28:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12544813 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 0118DC433EF for ; Fri, 8 Oct 2021 09:35:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 BBE2560F90 for ; Fri, 8 Oct 2021 09:35:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org BBE2560F90 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; 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Fri, 08 Oct 2021 09:33:20 +0000 Received: from mx24.baidu.com ([111.206.215.185] helo=baidu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmBx-002Bk4-0L; Fri, 08 Oct 2021 09:29:26 +0000 Received: from BC-Mail-Ex16.internal.baidu.com (unknown [172.31.51.56]) by Forcepoint Email with ESMTPS id F122AE56AD15C4B3F2E6; Fri, 8 Oct 2021 17:29:23 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-Ex16.internal.baidu.com (172.31.51.56) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Fri, 8 Oct 2021 17:29:23 +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; Fri, 8 Oct 2021 17:29:22 +0800 From: Cai Huoqing To: CC: Linus Walleij , Jonathan Cameron , Lars-Peter Clausen , Shawn Guo , Sascha Hauer , "Pengutronix Kernel Team" , Fabio Estevam , "NXP Linux Team" , Vladimir Zapolskiy , "Neil Armstrong" , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andy Gross , "Bjorn Andersson" , Heiko Stuebner , Philipp Zabel , , , , , , Subject: [PATCH v4 9/9] iio: adc: ti-ads7950: Make use of the helper function dev_err_probe() Date: Fri, 8 Oct 2021 17:28:57 +0800 Message-ID: <20211008092858.495-9-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211008092858.495-1-caihuoqing@baidu.com> References: <20211008092858.495-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex14.internal.baidu.com (172.31.51.54) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_022925_260929_98B1DEB9 X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 --- drivers/iio/adc/ti-ads7950.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/adc/ti-ads7950.c b/drivers/iio/adc/ti-ads7950.c index a2b83f0bd526..a7efa3eada2c 100644 --- a/drivers/iio/adc/ti-ads7950.c +++ b/drivers/iio/adc/ti-ads7950.c @@ -600,8 +600,8 @@ static int ti_ads7950_probe(struct spi_device *spi) st->reg = devm_regulator_get(&spi->dev, "vref"); if (IS_ERR(st->reg)) { - dev_err(&spi->dev, "Failed to get regulator \"vref\"\n"); - ret = PTR_ERR(st->reg); + ret = dev_err_probe(&spi->dev, PTR_ERR(st->reg), + "Failed to get regulator \"vref\"\n"); goto error_destroy_mutex; }