From patchwork Tue Sep 28 01:36:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12521359 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 AEC9CC433F5 for ; Tue, 28 Sep 2021 01:43:00 +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 770BD61247 for ; Tue, 28 Sep 2021 01:43:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 770BD61247 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=01rRy6Zu8fiEuuAtGC54Z6KG7M/JC6U9sLwEIXW52H0=; b=oU8eODT0t9jak6 Yd0FcQ4vUr6h0FDFXE4OnoL/w5Xx51Hr5/dKr5pLscQHzZYWA+tOJFZPSPmq6kJcWyXfMeIYzBZ2S HTQUg/wmrxqr1xXSY9K0p8Tc4fAtN+NkKNd56JucgFvmvFyOs2QX8HQrypYLcg2GewErz4+CSu10w q8p1XpbO6A0bKYrubTq4XqpsaYVzww78ivrJTaWQ6aUhQQhq6ou+CCbRudPUeg3M7e8ooBIbDLYET rDxedt+U1dlCzXbvMIbsMSq4csobLZHJwMQNUxhv6kzACSbUkdCNqT7ohplQ75YMwr8LV0GLx5SWS rxXVe4FXzjRq5JFExDTg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mV27E-0057hO-I0; Tue, 28 Sep 2021 01:41:05 +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 1mV23R-0055WO-W4; Tue, 28 Sep 2021 01:37:11 +0000 Received: from BC-Mail-HQEX01.internal.baidu.com (unknown [172.31.51.57]) by Forcepoint Email with ESMTPS id 6CA739BC34D210442B7C; Tue, 28 Sep 2021 09:37:08 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-HQEX01.internal.baidu.com (172.31.51.57) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Tue, 28 Sep 2021 09:37:08 +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; Tue, 28 Sep 2021 09:37:06 +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 9/9] iio: adc: ti-ads7950: Make use of the helper function dev_err_probe() Date: Tue, 28 Sep 2021 09:36:20 +0800 Message-ID: <20210928013621.1245-9-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210927_183710_314090_CD56BB15 X-CRM114-Status: GOOD ( 10.63 ) 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; }