From patchwork Wed Sep 15 14:57:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 512783 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2623C433F5 for ; Wed, 15 Sep 2021 15:13:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAD8061029 for ; Wed, 15 Sep 2021 15:13:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238125AbhIOPO7 (ORCPT ); Wed, 15 Sep 2021 11:14:59 -0400 Received: from mx22.baidu.com ([220.181.50.185]:40726 "EHLO baidu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234098AbhIOPOw (ORCPT ); Wed, 15 Sep 2021 11:14:52 -0400 Received: from BJHW-Mail-Ex03.internal.baidu.com (unknown [10.127.64.13]) by Forcepoint Email with ESMTPS id F293D16AD8CBF85EBDEB; Wed, 15 Sep 2021 22:57:31 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-Mail-Ex03.internal.baidu.com (10.127.64.13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Wed, 15 Sep 2021 22:57:31 +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; Wed, 15 Sep 2021 22:57:31 +0800 From: Cai Huoqing To: CC: Wolfgang Grandegger , Marc Kleine-Budde , "David S. Miller" , Jakub Kicinski , , , Subject: [PATCH] can: mscan: mpc5xxx_can: Make use of the helper function dev_err_probe() Date: Wed, 15 Sep 2021 22:57:25 +0800 Message-ID: <20210915145726.7092-1-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BJHW-Mail-Ex10.internal.baidu.com (10.127.64.33) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.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. And using dev_err_probe() can reduce code size, and simplify the code. Signed-off-by: Cai Huoqing --- drivers/net/can/mscan/mpc5xxx_can.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c index 35892c1efef0..de4ddf79ba9b 100644 --- a/drivers/net/can/mscan/mpc5xxx_can.c +++ b/drivers/net/can/mscan/mpc5xxx_can.c @@ -293,10 +293,8 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev) return -EINVAL; base = of_iomap(np, 0); - if (!base) { - dev_err(&ofdev->dev, "couldn't ioremap\n"); - return err; - } + if (!base) + return dev_err_probe(&ofdev->dev, err, "couldn't ioremap\n"); irq = irq_of_parse_and_map(np, 0); if (!irq) {