diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 2fb2963df55376a3a8efbf09490457e08b28b836..5b5fa5cdaa3108da74b7358ae187dd4ee8a00181 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -90,7 +90,7 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
 	if (bus == NULL || bus->iommu_ops == NULL)
 		return NULL;
 
-	domain = kmalloc(sizeof(*domain), GFP_KERNEL);
+	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 	if (!domain)
 		return NULL;