diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index c9db04d4ef39ae36553279859b6ca0f1c7972db1..8757f8dfc4e57afee580fc68d76b88658467dea5 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1068,7 +1068,7 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)
 	if (intel_iommu_enabled)
 		iommu->iommu_dev = iommu_device_create(NULL, iommu,
 						       intel_iommu_groups,
-						       iommu->name);
+						       "%s", iommu->name);
 
 	return 0;
 
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 0649b94f59584ca5b885cd0ecad595a84af0d89d..0be23c589d3b31263f3685b80cfeb933ac414a85 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4533,7 +4533,7 @@ int __init intel_iommu_init(void)
 	for_each_active_iommu(iommu, drhd)
 		iommu->iommu_dev = iommu_device_create(NULL, iommu,
 						       intel_iommu_groups,
-						       iommu->name);
+						       "%s", iommu->name);
 
 	bus_set_iommu(&pci_bus_type, &intel_iommu_ops);
 	bus_register_notifier(&pci_bus_type, &device_nb);