修复部分bsp编译报错

2 files changed, 3 insertions, 3 deletions

diff --git a/bsp/maxim/libraries/HAL_Drivers/drv_gpio.c b/bsp/maxim/libraries/HAL_Drivers/drv_gpio.c
index e2001371d9..2f91bb6ea7 100644
--- a/bsp/maxim/libraries/HAL_Drivers/drv_gpio.c
+++ b/bsp/maxim/libraries/HAL_Drivers/drv_gpio.c
@@ -158,7 +158,7 @@ static rt_err_t mcu_pin_dettach_irq(struct rt_device *device, rt_int32_t pin)
     tmp_gpio_cfg.func = GPIO_FUNC_IN;
     GPIO_Config(&tmp_gpio_cfg);
     GPIO_IntDisable(&tmp_gpio_cfg);
-    GPIO_RegisterCallback(&tmp_gpio_cfg, NULL, NULL);
+    GPIO_RegisterCallback(&tmp_gpio_cfg, RT_NULL, RT_NULL);
     return RT_EOK;
 }
 
@@ -189,7 +189,7 @@ const static struct rt_pin_ops _mcu_pin_ops =
     mcu_pin_attach_irq,
     mcu_pin_dettach_irq,
     mcu_pin_irq_enable,
-    NULL,
+    RT_NULL,
 };
 
 int rt_hw_pin_init(void)
diff --git a/bsp/maxim/libraries/HAL_Drivers/drv_uart.c b/bsp/maxim/libraries/HAL_Drivers/drv_uart.c
index 7e53800a33..2994a7ac2f 100644
--- a/bsp/maxim/libraries/HAL_Drivers/drv_uart.c
+++ b/bsp/maxim/libraries/HAL_Drivers/drv_uart.c
@@ -241,7 +241,7 @@ int rt_hw_usart_init(void)
                                        RT_DEVICE_FLAG_RDWR
                                        | RT_DEVICE_FLAG_INT_RX
                                        | RT_DEVICE_FLAG_INT_TX
-                                       , NULL);
+                                       , RT_NULL);
         RT_ASSERT(result == RT_EOK);
     }