1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 39f8b717fe84..3ce1f62a091f 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;
         }