diff --git a/drivers/dma-buf/heaps/rk_cma_heap.c b/drivers/dma-buf/heaps/rk_cma_heap.c
index c93674c2a79c..7ef319e2597d 100644
--- a/drivers/dma-buf/heaps/rk_cma_heap.c
+++ b/drivers/dma-buf/heaps/rk_cma_heap.c
@@ -9,7 +9,7 @@
  * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
  *	Andrew F. Davis <afd@ti.com>
  *
- * Copyright (C) 2021, 2022 Rockchip Electronics Co. Ltd.
+ * Copyright (C) 2021, 2022 Rockchip Electronics Co., Ltd.
  */
 
 #include <linux/cma.h>
diff --git a/drivers/dma-buf/heaps/rk_system_heap.c b/drivers/dma-buf/heaps/rk_system_heap.c
index 52dcfc2bb82c..f904f6fb65fd 100644
--- a/drivers/dma-buf/heaps/rk_system_heap.c
+++ b/drivers/dma-buf/heaps/rk_system_heap.c
@@ -4,7 +4,7 @@
  *
  * Copyright (C) 2011 Google, Inc.
  * Copyright (C) 2019, 2020 Linaro Ltd.
- * Copyright (c) 2021, 2022 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2021, 2022 Rockchip Electronics Co., Ltd.
  *
  * Portions based off of Andrew Davis' SRAM heap:
  * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/