Don't return error information from console_flush
And from crash_console_flush.
We ignore the error information return by console_flush in _every_
place where we call it, and casting the return type to void does not
work around the MISRA violation that this causes. Instead, we collect
the error information from the driver (to avoid changing that API), and
don't return it to the caller.
Change-Id: I1e35afe01764d5c8f0efd04f8949d333ffb688c1
Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
diff --git a/drivers/st/uart/aarch32/stm32_console.S b/drivers/st/uart/aarch32/stm32_console.S
index 0ed37d1..686b18b 100644
--- a/drivers/st/uart/aarch32/stm32_console.S
+++ b/drivers/st/uart/aarch32/stm32_console.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -193,37 +193,35 @@
endfunc console_stm32_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 : r0 - console base address
- * Out : return -1 on error else return 0.
+ * Out : void.
* Clobber list : r0, r1
* ---------------------------------------------------------------
*/
func console_stm32_core_flush
+#if ENABLE_ASSERTIONS
cmp r0, #0
- beq flush_error
+ ASM_ASSERT(ne)
+#endif /* ENABLE_ASSERTIONS */
/* Check Transmit Data Register Empty */
txe_loop_3:
ldr r1, [r0, #USART_ISR]
tst r1, #USART_ISR_TXE
beq txe_loop_3
- mov r0, #0
- bx lr
-flush_error:
- mov r0, #-1
bx lr
endfunc console_stm32_core_flush
/* ------------------------------------------------------
- * int console_stm32_flush(console_t *console)
+ * void console_stm32_flush(console_t *console)
* Function to force a write of all buffered
* data that hasn't been output.
* In : r0 - pointer to console_t structure
- * Out : return -1 on error else return 0.
+ * Out : void.
* Clobber list: r0, r1
* ------------------------------------------------------
*/