From patchwork Wed May 12 14:41:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 436537 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 14DFCC2B9FA for ; Wed, 12 May 2021 16:36:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED140611BE for ; Wed, 12 May 2021 16:36:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242332AbhELQeW (ORCPT ); Wed, 12 May 2021 12:34:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:43080 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241390AbhELQ1H (ORCPT ); Wed, 12 May 2021 12:27:07 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3034261DCC; Wed, 12 May 2021 15:52:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620834733; bh=ZQx6QBCVeIKJ/sDG5fpOK8AgKnJ6xAnfGGFB6wZDXAM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BAqpaPPMZb0rw3F+NdU/TH+34vIJF/YNdiAzCX99uoRtsQmjl7FVqsdAtFKdpLaaj tQMyNmRtwydLK4dxmSxHl4xk3RqIMmpLH0JXBC/tXpS/JT5ALMPNArozNHvu4Hw2IR I/+tBy6ry4UNA1gskYtHTOlrZCl2i7t6ePiwBt0s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, dann.frazier@canonical.com, Dejin Zheng , Lorenzo Pieralisi Subject: [PATCH 5.12 035/677] PCI: xgene: Fix cfg resource mapping Date: Wed, 12 May 2021 16:41:21 +0200 Message-Id: <20210512144838.383057241@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dejin Zheng commit d4707d79fae08c8996a1ba45965a491045a22dda upstream. In commit e2dcd20b1645 a change was made to use devm_platform_ioremap_resource_byname() to simplify code and remove the res variable; this was wrong since the res variable is still needed and as an outcome the port->cfg_addr gets an erroneous address. Revert the change going back to original behaviour. Link: https://lore.kernel.org/r/20210328144118.305074-1-zhengdejin5@gmail.com Fixes: e2dcd20b1645a ("PCI: controller: Convert to devm_platform_ioremap_resource_byname()") Reported-by: dann.frazier@canonical.com Tested-by: dann frazier Signed-off-by: Dejin Zheng Signed-off-by: Lorenzo Pieralisi Cc: stable@vger.kernel.org # v5.9+ Signed-off-by: Greg Kroah-Hartman --- drivers/pci/controller/pci-xgene.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/pci/controller/pci-xgene.c +++ b/drivers/pci/controller/pci-xgene.c @@ -354,7 +354,8 @@ static int xgene_pcie_map_reg(struct xge if (IS_ERR(port->csr_base)) return PTR_ERR(port->csr_base); - port->cfg_base = devm_platform_ioremap_resource_byname(pdev, "cfg"); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg"); + port->cfg_base = devm_ioremap_resource(dev, res); if (IS_ERR(port->cfg_base)) return PTR_ERR(port->cfg_base); port->cfg_addr = res->start;