From patchwork Fri Oct 18 17:12:05 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Gordeev X-Patchwork-Id: 3071101 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E58A99F2B6 for ; Sat, 19 Oct 2013 06:36:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E427F203DB for ; Sat, 19 Oct 2013 06:36:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1699720306 for ; Sat, 19 Oct 2013 06:36:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751011Ab3JSGgi (ORCPT ); Sat, 19 Oct 2013 02:36:38 -0400 Received: from 221-186-24-89.in-addr.arpa ([89.24.186.221]:12511 "EHLO dhcp-26-207.brq.redhat.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1750985Ab3JSGgh (ORCPT ); Sat, 19 Oct 2013 02:36:37 -0400 Received: from dhcp-26-207.brq.redhat.com (localhost [127.0.0.1]) by dhcp-26-207.brq.redhat.com (8.14.5/8.14.5) with ESMTP id r9IHDDWP004727; Fri, 18 Oct 2013 19:13:13 +0200 Received: (from agordeev@localhost) by dhcp-26-207.brq.redhat.com (8.14.5/8.14.5/Submit) id r9IHDCBN004726; Fri, 18 Oct 2013 19:13:12 +0200 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Bjorn Helgaas , Michael Ellerman , Benjamin Herrenschmidt , Tejun Heo , Ben Hutchings , David Laight , Mark Lord , "H. Peter Anvin" , linux-pci@vger.kernel.org Subject: [PATCH RFC v2 05/29] PCI/MSI: Fix return value when populate_msi_sysfs() failed Date: Fri, 18 Oct 2013 19:12:05 +0200 Message-Id: <0607a740e8df7971c8132ef68f8c8a7bbdd6a181.1382103786.git.agordeev@redhat.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 If populate_msi_sysfs() function failed msix_capability_init() must return the error code, but it returns the success instead. This update fixes the described misbehaviour. Signed-off-by: Alexander Gordeev Reviewed-by: Tejun Heo --- drivers/pci/msi.c | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index d5f90d6..b43f391 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -719,7 +719,7 @@ static int msix_capability_init(struct pci_dev *dev, ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX); if (ret) - goto error; + goto out_avail; /* * Some devices require MSI-X to be enabled before we can touch the @@ -732,10 +732,8 @@ static int msix_capability_init(struct pci_dev *dev, msix_program_entries(dev, entries); ret = populate_msi_sysfs(dev); - if (ret) { - ret = 0; - goto error; - } + if (ret) + goto out_free; /* Set MSI-X enabled bits and unmask the function */ pci_intx_for_msi(dev, 0); @@ -746,7 +744,7 @@ static int msix_capability_init(struct pci_dev *dev, return 0; -error: +out_avail: if (ret < 0) { /* * If we had some success, report the number of irqs @@ -763,6 +761,7 @@ error: ret = avail; } +out_free: free_msi_irqs(dev); return ret;