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: 12544727 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 11A9FC433F5 for ; Fri, 8 Oct 2021 09:29:44 +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 D793760E75 for ; Fri, 8 Oct 2021 09:29:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D793760E75 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=V2swjY4u7+s0EHon+OjexTyK98MRf+OirSobdniTpZY=; b=EAx6lA9J20dF5n /W7EiCeXwXxPCqvtDS6z376W5c16VJk+KFqY/GkcG0LI0CgjpyKPH7mBmboWxtwLmKGwUP14APShk iRjElDCL0M2DFRwTID7KyqzHpYHjMkppvRikuw256MCWH8tArhjScne6SwIy5yPMGJ0/RfaVASJkP uLMbsD8DmN6Qoh9ZSzAXW38HF2cxGjfEZ1mzSt7FDtF6BiMrT2og44I0cLRbpJ6FWVlK6EulgwTjM 8J7GzIDLgQM2aONCpAxrY+L3F3qskmssxE6kZAzwQ/CzAcisBfv+lIycJnMAwAdOwRCwRGwn4tJwo MHVPcbphAd8x0ixItSJQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYmCC-002Bq1-Nm; Fri, 08 Oct 2021 09:29:40 +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 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-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 --- 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;