Merge pull request #11042 from caoyuan96421/bugfix

Fixed serial_device IRQ infinite loop bug due to uint8_t overflowing in STM devices

Author: Seppo Takalo

targets/TARGET_STM/TARGET_STM32F0/serial_device.c

@@ -605,7 +605,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32F1/serial_device.c

@@ -476,7 +476,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32F2/serial_device.c

@@ -559,7 +559,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32F3/serial_device.c

@@ -522,7 +522,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32F4/serial_device.c

@@ -604,7 +604,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32F7/serial_device.c

@@ -560,7 +560,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32H7/serial_device.c

@@ -573,7 +573,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32L0/serial_device.c

@@ -500,7 +500,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32L1/serial_device.c

@@ -512,7 +512,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {

targets/TARGET_STM/TARGET_STM32L4/serial_device.c

@@ -536,7 +536,7 @@ int serial_irq_handler_asynch(serial_t *obj)
 
     volatile int return_event = 0;
     uint8_t *buf = (uint8_t *)(obj->rx_buff.buffer);
-    uint8_t i = 0;
+    size_t i = 0;
 
     // TX PART:
     if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {