From patchwork Tue Sep 28 01:36:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12521351 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 C94FFC433FE for ; Tue, 28 Sep 2021 01:40:25 +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 9823A61260 for ; Tue, 28 Sep 2021 01:40:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9823A61260 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=Ix9ZGWVNnXtt2wrY8rMz3lVXX3khj+oWpEqFRlWHXeQ=; b=wFqRkF2CFfmDoa T5azeLFKbkonpNogCM5tpoznAqkBdo+XA6dAsRG4FVJYYeZjysmwaQICUtOk1SsxEPmKlRl/ZB6TV PgGl2wSNpGkKixFFd5kGE2IwXoIvbBGU552cEQ9UeDi+JCTApnkWgx//9qVjf3eSi2z43E9iZcsvq 3x5gn+BKGfScDt97cD5LoWS1B1vKFS25Su7EWQEMPMlslpPago14Bn5vDHfxV/hB2OYYXSP/pbb6P EhQhNMG/6sLJhD66rqBUF0B0BeFaxxQbREunmxf5+FJ76Xj7anoPU3Z7iGz0AKPUtrYaAJFHSBWdP 2ssvN6CZUEanSqo/lxOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mV24X-005662-AL; Tue, 28 Sep 2021 01:38:17 +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 1mV239-0055LE-5o; Tue, 28 Sep 2021 01:36:52 +0000 Received: from BJHW-Mail-Ex09.internal.baidu.com (unknown [10.127.64.32]) by Forcepoint Email with ESMTPS id E9E892C1BC5E2CA2B252; Tue, 28 Sep 2021 09:36:49 +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; Tue, 28 Sep 2021 09:36:49 +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 09:36:48 +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 , , , , , , Subject: [PATCH v2 5/9] iio: adc: max1241: Make use of the helper function dev_err_probe() Date: Tue, 28 Sep 2021 09:36:16 +0800 Message-ID: <20210928013621.1245-5-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210928013621.1245-1-caihuoqing@baidu.com> References: <20210928013621.1245-1-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) X-Baidu-BdMsfe-DateCheck: 1_BJHW-Mail-Ex09_2021-09-28 09:36:49:944 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210927_183651_429964_B9298133 X-CRM114-Status: UNSURE ( 9.79 ) 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/max1241.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c index b60f8448f21a..130ca8dc6fa0 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)