From patchwork Fri Jun 7 22:30:53 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 2690931 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 6480940232 for ; Fri, 7 Jun 2013 22:38:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757201Ab3FGWik (ORCPT ); Fri, 7 Jun 2013 18:38:40 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:51321 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756597Ab3FGWbh (ORCPT ); Fri, 7 Jun 2013 18:31:37 -0400 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by userp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id r57MVBlQ017989 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 7 Jun 2013 22:31:11 GMT Received: from userz7021.oracle.com (userz7021.oracle.com [156.151.31.85]) by ucsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r57MVCHh019674 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 7 Jun 2013 22:31:13 GMT Received: from abhmt103.oracle.com (abhmt103.oracle.com [141.146.116.55]) by userz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r57MVCkj008186; Fri, 7 Jun 2013 22:31:12 GMT Received: from linux-siqj.site (/10.132.126.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 07 Jun 2013 15:31:11 -0700 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Bjorn Helgaas , "Rafael J. Wysocki" Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu , Joerg Roedel , Donald Dutile Subject: [PATCH v3 07/27] iommu, irq: Allocate irq_desc for dmar_msi with local node Date: Fri, 7 Jun 2013 15:30:53 -0700 Message-Id: <1370644273-10495-8-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1370644273-10495-1-git-send-email-yinghai@kernel.org> References: <1370644273-10495-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org iommu irq's irq_desc should be on local node ram. Fix the return value checking problem. create_irq() will return -1 when fail to allocate. create_irq_nr() will return 0 when fail to allocate. here only check !irq, so need to change it to use create_irq_nr instead. Signed-off-by: Yinghai Lu Cc: Joerg Roedel Cc: Donald Dutile Acked-by: Donald Dutile --- drivers/iommu/dmar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index a7967ce..c09e60d 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1273,7 +1273,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu) if (iommu->irq) return 0; - irq = create_irq(); + irq = create_irq_nr(0, iommu->node); if (!irq) { pr_err("IOMMU: no free vectors\n"); return -EINVAL;