From patchwork Mon Sep 28 12:00:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tang Bin X-Patchwork-Id: 11803579 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 637C4618 for ; Mon, 28 Sep 2020 12:01:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5026920774 for ; Mon, 28 Sep 2020 12:01:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726558AbgI1MBV (ORCPT ); Mon, 28 Sep 2020 08:01:21 -0400 Received: from cmccmta2.chinamobile.com ([221.176.66.80]:24101 "EHLO cmccmta2.chinamobile.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726513AbgI1MBU (ORCPT ); Mon, 28 Sep 2020 08:01:20 -0400 Received: from spf.mail.chinamobile.com (unknown[172.16.121.5]) by rmmx-syy-dmz-app07-12007 (RichMail) with SMTP id 2ee75f71d077242-f63b6; Mon, 28 Sep 2020 20:00:58 +0800 (CST) X-RM-TRANSID: 2ee75f71d077242-f63b6 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from localhost.localdomain (unknown[223.112.105.130]) by rmsmtp-syy-appsvr03-12003 (RichMail) with SMTP id 2ee35f71d078268-40e0d; Mon, 28 Sep 2020 20:00:58 +0800 (CST) X-RM-TRANSID: 2ee35f71d078268-40e0d From: Tang Bin To: f.fainelli@gmail.com, balbi@kernel.org, gregkh@linuxfoundation.org, chunfeng.yun@mediatek.com Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Tang Bin , Zhang Shengju Subject: [PATCH v2] usb: bdc: Fix the return value and remove duplicate error message Date: Mon, 28 Sep 2020 20:00:51 +0800 Message-Id: <20200928120051.21748-1-tangbin@cmss.chinamobile.com> X-Mailer: git-send-email 2.20.1.windows.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed, and it can print an error message itself if failed. So remove the redundant dev_err() in this place. Signed-off-by: Zhang Shengju Signed-off-by: Tang Bin --- Changes from v1 - fix the subject and commit message - fix the code of right return if failed --- drivers/usb/gadget/udc/bdc/bdc_core.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c index 02a3a7746..70ff31bc8 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_core.c +++ b/drivers/usb/gadget/udc/bdc/bdc_core.c @@ -508,10 +508,9 @@ static int bdc_probe(struct platform_device *pdev) bdc->clk = clk; bdc->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(bdc->regs)) { - dev_err(dev, "ioremap error\n"); - return -ENOMEM; - } + if (IS_ERR(bdc->regs)) + return PTR_ERR(bdc->regs); + irq = platform_get_irq(pdev, 0); if (irq < 0) return irq;