1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 757e0b0d19ff..0df41f6264f5 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -70,6 +70,11 @@ static int get_irte(int irq, struct irte *entry)
 
         raw_spin_lock_irqsave(&irq_2_ir_lock, flags);
 
+        if (unlikely(!irq_iommu->iommu)) {
+                raw_spin_unlock_irqrestore(&irq_2_ir_lock, flags);
+                return -1;
+        }
+
         index = irq_iommu->irte_index + irq_iommu->sub_handle;
         *entry = *(irq_iommu->iommu->ir_table->base + index);