From patchwork Tue Sep 28 14:19:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12522925 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 924A6C433F5 for ; Tue, 28 Sep 2021 14:21:34 +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 64E90611C0 for ; Tue, 28 Sep 2021 14:21:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 64E90611C0 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=/J5TIoeT0UcUrKxNJW/psE7+QwR9+QVjOAz23C99grM=; b=jX/36HkYqTDmEB KFl6/NA8zNRJV9mmhhORBDBfrEVPa/EdO1iuGG6m+IIUIcWAKBr6MVwuEop1syGK7stBXJrQpvp9d yBLp/RluD2JQxREDlTw8YB8o2DA1FcHDpN6CUuvuLMW8rU9LYGsHLneVXDDrxwRKg4lN44m91LuTv ZtuKPUEskUwX1N+p8lrpNqc9Q5L/zP5UNVt263KfdsXQt5mzG3nRENLGOIwUq1azTL+ZuIDzFZypX vzMylBQkTRQlyAEXz/xgkyrM2mAqK25KF3n2pcRCsUBcKCowgkVgWmnXIqD1bOQGdC43nei3NTLGg aJvjGlU0ODyQZ4d7TDhA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mVDz9-007Xa2-8A; Tue, 28 Sep 2021 14:21:31 +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 1mVDy5-007X43-So; Tue, 28 Sep 2021 14:20:27 +0000 Received: from BJHW-Mail-Ex11.internal.baidu.com (unknown [10.127.64.34]) by Forcepoint Email with ESMTPS id AE35FBE4A2BB5652BBAB; Tue, 28 Sep 2021 22:20:23 +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; Tue, 28 Sep 2021 22:20:23 +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; Tue, 28 Sep 2021 22:20:22 +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 , , , , , , Subject: [PATCH v3 4/9] iio: adc: max1118: Make use of the helper function dev_err_probe() Date: Tue, 28 Sep 2021 22:19:50 +0800 Message-ID: <20210928141956.2148-4-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210928141956.2148-1-caihuoqing@baidu.com> References: <20210928141956.2148-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BJHW-Mail-Ex13.internal.baidu.com (10.127.64.36) 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-20210928_072026_139272_05F13BA4 X-CRM114-Status: GOOD ( 10.57 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=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;