From patchwork Wed Oct 12 12:53:34 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Helgaas X-Patchwork-Id: 681183 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3svDMM1m5Fz9t2Y for ; Wed, 12 Oct 2016 23:54:07 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753900AbcJLMxv (ORCPT ); Wed, 12 Oct 2016 08:53:51 -0400 Received: from mail.kernel.org ([198.145.29.136]:51852 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933073AbcJLMxo (ORCPT ); Wed, 12 Oct 2016 08:53:44 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 51E39202E9; Wed, 12 Oct 2016 12:53:37 +0000 (UTC) Received: from localhost (unknown [69.71.4.155]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4A28520222; Wed, 12 Oct 2016 12:53:36 +0000 (UTC) Subject: [PATCH v2 3/5] PCI: iproc: Validate CSR base in BCMA setup code To: Jon Mason , Ray Jui , Scott Branden From: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com Date: Wed, 12 Oct 2016 07:53:34 -0500 Message-ID: <20161012125334.24076.31257.stgit@bhelgaas-glaptop2.roam.corp.google.com> In-Reply-To: <20161012124804.24076.48957.stgit@bhelgaas-glaptop2.roam.corp.google.com> References: <20161012124804.24076.48957.stgit@bhelgaas-glaptop2.roam.corp.google.com> User-Agent: StGit/0.16 MIME-Version: 1.0 X-Spam-Status: No, score=-1.0 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, NML_ADSP_CUSTOM_MED,UNPARSEABLE_RELAY autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Validate iproc_pcie->base for BCMA devices just like we already do for platform devices in iproc_pcie_pltfm_probe(). No functional change intended. Signed-off-by: Bjorn Helgaas --- drivers/pci/host/pcie-iproc-bcma.c | 5 +++++ drivers/pci/host/pcie-iproc.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/pci/host/pcie-iproc-bcma.c b/drivers/pci/host/pcie-iproc-bcma.c index ec6edaf..8ce0890 100644 --- a/drivers/pci/host/pcie-iproc-bcma.c +++ b/drivers/pci/host/pcie-iproc-bcma.c @@ -55,6 +55,11 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev) pcie->dev = dev; pcie->base = bdev->io_addr; + if (!pcie->base) { + dev_err(dev, "no controller registers\n"); + return -ENOMEM; + } + pcie->base_addr = bdev->addr; res_mem.start = bdev->addr_s[0]; diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c index c41d6bd..12a5156 100644 --- a/drivers/pci/host/pcie-iproc.c +++ b/drivers/pci/host/pcie-iproc.c @@ -462,7 +462,7 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res) void *sysdata; struct pci_bus *bus; - if (!pcie || !pcie->dev || !pcie->base) + if (!pcie || !pcie->dev) return -EINVAL; dev = pcie->dev;