Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753292Ab3HKCyp (ORCPT ); Sat, 10 Aug 2013 22:54:45 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:25819 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753218Ab3HKCtF (ORCPT ); Sat, 10 Aug 2013 22:49:05 -0400 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 v4 10/28] iommu, irq: Allocate irq_desc for dmar_msi with local node Date: Sat, 10 Aug 2013 19:47:56 -0700 Message-Id: <1376189294-32022-11-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1376189294-32022-1-git-send-email-yinghai@kernel.org> References: <1376189294-32022-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1287 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 785675a..db41e36 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; -- 1.8.1.4 -- 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/