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 ; Fri, 8 Oct 2021 09:31:29 +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 8131860E75 for ; Fri, 8 Oct 2021 09:31:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8131860E75 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=/2pcgOrT1fGJnFh8s1CFTYblMb+sCml+wittSkLNZq8=; b=q9qrffw+s2Wgry PXe8g1/fl7dyPCZvnTImF3d9+0i26n6KrXbxSfU1bvHBnAIJsBD2rfuZ/d53oodj1n1UKnOnXJMhb QGkAN4lDcHSu7Nn1Eb1SVwSxckkAz9BfnnPudR5KvbiYmXPIBDLU/5rUoSkgbWdexo90cko5yMWIq dbGznjmYXI2HtSs2mbwgzxZA1BPvRfI+lkwRshI2sj1YVcVb7/HG8+ZeAW2BjLK6F84gOARn/T4fp e6ucWAbjx46Wpd2UoRDLQFetiN42nyojglafqz7vTZdoPNsbfy2GfbYAIF3oM4t49DSMPXtY7rnw2 M82JcO5MimyF69+qVBIg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmC1-002Blq-NH; Fri, 08 Oct 2021 09:29:30 +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 1mYmBf-002BaS-3o; Fri, 08 Oct 2021 09:29:09 +0000 Received: from BJHW-Mail-Ex10.internal.baidu.com (unknown [10.127.64.33]) by Forcepoint Email with ESMTPS id 8BB20F70243F7C8C237C; Fri, 8 Oct 2021 17:29:02 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex10.internal.baidu.com (10.127.64.33) 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 17:29:02 +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);