diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index e587d4ac4d33..695714426379 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -547,6 +547,7 @@ iommu_copy_struct_from_full_user_array(void *kdst, size_t kdst_entry_size,
 				   user_array->entry_num *
 					   user_array->entry_len))
 			return -EFAULT;
+		return 0;
 	}
 
 	/* Copy item by item */