Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754553AbaACASt (ORCPT ); Thu, 2 Jan 2014 19:18:49 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:21782 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753687AbaACAHO (ORCPT ); Thu, 2 Jan 2014 19:07:14 -0500 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Tony Luck , Bjorn Helgaas , "Rafael J. Wysocki" Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Yinghai Lu , Joerg Roedel , Donald Dutile , Sebastian Andrzej Siewior , stable@vger.kernel.org Subject: [PATCH v5 10/33] iommu, irq: Allocate irq_desc for dmar_msi with local node Date: Thu, 2 Jan 2014 16:05:42 -0800 Message-Id: <1388707565-16535-11-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1388707565-16535-1-git-send-email-yinghai@kernel.org> References: <1388707565-16535-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1285 Lines: 40 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. -v2: According to Sebastian, add cc to stable. Signed-off-by: Yinghai Lu Cc: Joerg Roedel Cc: Donald Dutile Acked-by: Donald Dutile Cc: Sebastian Andrzej Siewior Cc: stable@vger.kernel.org --- 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 8b452c9..f4eaa50 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1277,7 +1277,7 @@ 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; -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/