From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 9428AC10F05 for ; Sat, 23 Mar 2019 21:19:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5ED9C2133F for ; Sat, 23 Mar 2019 21:19:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="ZfoJ8FWW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728476AbfCWVRF (ORCPT ); Sat, 23 Mar 2019 17:17:05 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:52714 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728433AbfCWVRC (ORCPT ); Sat, 23 Mar 2019 17:17:02 -0400 Received: by mail-wm1-f66.google.com with SMTP id a184so5278919wma.2 for ; Sat, 23 Mar 2019 14:17:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=VDrizs2/2ZAftGyDtPa0UqsjZPPXfl5+5ooldcgiEvQ=; b=ZfoJ8FWWjKGpcf9d8YwDrrIirJDbmWiEjOXqDMQPc8rWiEWNMYPlq1pRe8QH+BaV6H pkrLqStBymgTLCR5hhVa9XS/OndbeL7zySXywosVPnf95crPm6DXiIq7K1kIo3xrhs36 pvZIuTX23bTXySIbRHTULrEB4Vu0bxx0I/dsLemhJ1ID/pUBe7s6X5AJXbLjVOCKOKCC O8LPKDU+NZ2tFgvLKMJzAjeLaiTHVpCIHyXb0J1Ua1kYxpdvWG0yf1zNgYhHiWcyGoKJ Wrz6wRK3KeNHqnpmlYcE1SfcxeU1v5wcz9/CYzAa6pZoJ26NTBmbEI3wcBHFs4iAMjCz wvGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=VDrizs2/2ZAftGyDtPa0UqsjZPPXfl5+5ooldcgiEvQ=; b=GCSQkn4skTrqzd407i4sgRdeoRHaK9WtnYlyngeEQfAgr9UJXx7qhnfzn2a/hMhpsP lBOTQXwJrNf/5R/ArFHdoUvMd53r0BktSbMKyXvq7P1+VGPkJmjJ7XWhAHKDEEAX/jWO 4jm8YLs9AVTQOBI28Yxw4QUToZIsI+Bo4zar75m7OsQj0JTWX9DC4A3Kk0auIYSy7DQe FnKbMMkhPWvf/YAwzuNGAQm2/EFUEX0jOSt46yL1QJ5GnQ2zUZT81cP/G7E2IzKGZbVr jXKku2mixbjf5bx6M1GSqWrOFkXSZY+HpNA12HEC0nykBPo1esixMkxhomcRS6Hj620x U5DA== X-Gm-Message-State: APjAAAWBdIfcTBEcayQyrwGkeI21mqDrzfTmzvhfDBkZCvpIryLEZ1Ey 1sdxkxYygtGxLEGdIcAJQMgfDg== X-Google-Smtp-Source: APXvYqynNilWbzifjm8V9o5qdrR1Mbct64Bkz7ip1tKMi8jiaJiaxwasknDL/Rs9NTJNNkzHIdVr6w== X-Received: by 2002:a7b:c404:: with SMTP id k4mr927170wmi.117.1553375820854; Sat, 23 Mar 2019 14:17:00 -0700 (PDT) Received: from localhost.localdomain (cag06-8-78-203-165-84.fbx.proxad.net. [78.203.165.84]) by smtp.gmail.com with ESMTPSA id y66sm8050503wmd.37.2019.03.23.14.16.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Mar 2019 14:17:00 -0700 (PDT) From: Fabien Parent To: matthias.bgg@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: sean.wang@kernel.org, ryder.lee@mediatek.com, hsin-hsiung.wang@mediatek.com, wenzhen.yu@mediatek.com, chaotian.jing@mediatek.com, yong.mao@mediatek.com, jjian.zhou@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-mmc@vger.kernel.org, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-clk@vger.kernel.org, stephane.leprovost@mediatek.com, Fabien Parent Subject: [PATCH 09/24] mmc: mtk-sd: check for valid optional memory resource Date: Sat, 23 Mar 2019 22:15:57 +0100 Message-Id: <20190323211612.860-10-fparent@baylibre.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190323211612.860-1-fparent@baylibre.com> References: <20190323211612.860-1-fparent@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org 'top_base' memory region is optional. Check that the resource is valid before using it. This avoid getting a "invalid resource" error message printed by the kernel. Signed-off-by: Fabien Parent --- drivers/mmc/host/mtk-sd.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 833ef0590af8..573aa127d00b 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -2123,9 +2123,11 @@ static int msdc_drv_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - host->top_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(host->top_base)) - host->top_base = NULL; + if (ret) { + host->top_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->top_base)) + host->top_base = NULL; + } ret = mmc_regulator_get_supply(mmc); if (ret) -- 2.20.1