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 <ying...@kernel.org>
Cc: Joerg Roedel <j...@8bytes.org>
Cc: Donald Dutile <ddut...@redhat.com>
Acked-by: Donald Dutile <ddut...@redhat.com>
Cc: Sebastian Andrzej Siewior <sebast...@breakpoint.cc>
Cc: sta...@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
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