From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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> In-Reply-To: <1370644273-10495-1-git-send-email-yinghai@kernel.org> References: <1370644273-10495-1-git-send-email-yinghai@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 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; -- 1.8.1.4