1127 	if (param->fault_param) {  in iommu_register_device_fault_handler()
1133 	param->fault_param = kzalloc(sizeof(*param->fault_param), GFP_KERNEL);  in iommu_register_device_fault_handler()
1134 	if (!param->fault_param) {  in iommu_register_device_fault_handler()
1139 	param->fault_param->handler = handler;  in iommu_register_device_fault_handler()
1140 	param->fault_param->data = data;  in iommu_register_device_fault_handler()
1141 	mutex_init(&param->fault_param->lock);  in iommu_register_device_fault_handler()
1142 	INIT_LIST_HEAD(&param->fault_param->faults);  in iommu_register_device_fault_handler()
1170 	if (!param->fault_param)  in iommu_unregister_device_fault_handler()
1174 	if (!list_empty(&param->fault_param->faults)) {  in iommu_unregister_device_fault_handler()
1179 	kfree(param->fault_param);  in iommu_unregister_device_fault_handler()
1180 	param->fault_param = NULL;  in iommu_unregister_device_fault_handler()
1212 	fparam = param->fault_param;  in iommu_report_device_fault()
1258 	if (!param || !param->fault_param)  in iommu_page_response()
1266 	mutex_lock(&param->fault_param->lock);  in iommu_page_response()
1267 	if (list_empty(&param->fault_param->faults)) {  in iommu_page_response()
1275 	list_for_each_entry(evt, &param->fault_param->faults, list) {  in iommu_page_response()
1303 	mutex_unlock(&param->fault_param->lock);  in iommu_page_response()