Messages in this thread Patch in this message | | | From | Yinghai Lu <> | 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 |
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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 <yinghai@kernel.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Donald Dutile <ddutile@redhat.com> Acked-by: Donald Dutile <ddutile@redhat.com> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> 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
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