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-rw-r--r--drivers/iommu/dmar.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 39f8b71..3ce1f62 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1551,7 +1551,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
return 0;
irq = create_irq();
- if (!irq) {
+ if (irq <= 0) {
pr_err("IOMMU: no free vectors\n");
return -EINVAL;
}