diff --git a/plat/mediatek/common/drivers/uart/8250_console.S b/plat/mediatek/common/drivers/uart/8250_console.S
index 94a6c02..7a946f9 100644
--- a/plat/mediatek/common/drivers/uart/8250_console.S
+++ b/plat/mediatek/common/drivers/uart/8250_console.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -149,16 +149,15 @@
 endfunc console_core_getc
 
 	/* ---------------------------------------------
-	 * int console_core_flush(uintptr_t base_addr)
+	 * void console_core_flush(uintptr_t base_addr)
 	 * Function to force a write of all buffered
 	 * data that hasn't been output.
 	 * In : x0 - console base address
-	 * Out : return -1 on error else return 0.
+	 * Out : void.
 	 * Clobber list : x0, x1
 	 * ---------------------------------------------
 	 */
 func console_core_flush
 	/* Placeholder */
-	mov	w0, #0
 	ret
 endfunc console_core_flush
diff --git a/plat/mediatek/mt6795/aarch64/plat_helpers.S b/plat/mediatek/mt6795/aarch64/plat_helpers.S
index 94f9eae..aaddb2b 100644
--- a/plat/mediatek/mt6795/aarch64/plat_helpers.S
+++ b/plat/mediatek/mt6795/aarch64/plat_helpers.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -123,10 +123,10 @@
 endfunc plat_crash_console_putc
 
 	/* ---------------------------------------------
-	 * int plat_crash_console_flush(int c)
+	 * void plat_crash_console_flush(int c)
 	 * Function to force a write of all buffered
 	 * data that hasn't been output.
-	 * Out : return -1 on error else return 0.
+	 * Out : void.
 	 * Clobber list : x0, x1
 	 * ---------------------------------------------
 	 */