From e9399566d7eaa76ca6114d108d1b7bf34fca157b Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Thu, 17 May 2018 10:51:04 +0000
Subject: Fixed bug #948.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@12040 110e8d01-0319-4d1e-a829-52ad28d1bb01
---
 os/hal/src/hal_uart.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'os/hal/src')

diff --git a/os/hal/src/hal_uart.c b/os/hal/src/hal_uart.c
index dd9f4a6d2..2d6a4c408 100644
--- a/os/hal/src/hal_uart.c
+++ b/os/hal/src/hal_uart.c
@@ -188,7 +188,7 @@ void uartStartSendI(UARTDriver *uartp, size_t n, const void *txbuf) {
  *
  * @return              The number of data frames not transmitted by the
  *                      stopped transmit operation.
- * @retval 0            There was no transmit operation in progress.
+ * @retval UART_ERR_NOT_ACTIVE if there was no transmit operation in progress.
  *
  * @api
  */
@@ -205,7 +205,7 @@ size_t uartStopSend(UARTDriver *uartp) {
     uartp->txstate = UART_TX_IDLE;
   }
   else {
-    n = 0;
+    n = UART_ERR_NOT_ACTIVE;
   }
   osalSysUnlock();
 
@@ -221,7 +221,7 @@ size_t uartStopSend(UARTDriver *uartp) {
  *
  * @return              The number of data frames not transmitted by the
  *                      stopped transmit operation.
- * @retval 0            There was no transmit operation in progress.
+ * @retval UART_ERR_NOT_ACTIVE if there was no transmit operation in progress.
  *
  * @iclass
  */
@@ -236,7 +236,7 @@ size_t uartStopSendI(UARTDriver *uartp) {
     uartp->txstate = UART_TX_IDLE;
     return n;
   }
-  return 0;
+  return UART_ERR_NOT_ACTIVE;
 }
 
 /**
@@ -294,7 +294,7 @@ void uartStartReceiveI(UARTDriver *uartp, size_t n, void *rxbuf) {
  *
  * @return              The number of data frames not received by the
  *                      stopped receive operation.
- * @retval 0            There was no receive operation in progress.
+ * @retval UART_ERR_NOT_ACTIVE if there was no receive operation in progress.
  *
  * @api
  */
@@ -311,7 +311,7 @@ size_t uartStopReceive(UARTDriver *uartp) {
     uartp->rxstate = UART_RX_IDLE;
   }
   else {
-    n = 0;
+    n = UART_ERR_NOT_ACTIVE;
   }
   osalSysUnlock();
 
@@ -327,7 +327,7 @@ size_t uartStopReceive(UARTDriver *uartp) {
  *
  * @return              The number of data frames not received by the
  *                      stopped receive operation.
- * @retval 0            There was no receive operation in progress.
+ * @retval UART_ERR_NOT_ACTIVE if there was no receive operation in progress.
  *
  * @iclass
  */
@@ -342,7 +342,7 @@ size_t uartStopReceiveI(UARTDriver *uartp) {
     uartp->rxstate = UART_RX_IDLE;
     return n;
   }
-  return 0;
+  return UART_ERR_NOT_ACTIVE;
 }
 
 #if (UART_USE_WAIT == TRUE) || defined(__DOXYGEN__)
-- 
cgit v1.2.3