diff --git a/bsp/hc32/tests/test_adc.c b/bsp/hc32/tests/test_adc.c
index 349e7353a19..2641c664553 100644
--- a/bsp/hc32/tests/test_adc.c
+++ b/bsp/hc32/tests/test_adc.c
@@ -111,7 +111,7 @@ static int adc_vol_sample(int argc, char **argv)
         else
         {
             rt_kprintf("The chip hasn't the adc unit!\r\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 
@@ -120,7 +120,7 @@ static int adc_vol_sample(int argc, char **argv)
     if (adc_dev == RT_NULL)
     {
         rt_kprintf("adc sample run failed! can't find %s device!\r\n", adc_device);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
 #if defined(BSP_ADC1_USING_DMA) || defined(BSP_ADC2_USING_DMA) || defined(BSP_ADC3_USING_DMA)
diff --git a/bsp/hc32/tests/test_can.c b/bsp/hc32/tests/test_can.c
index fe9c960593e..f12e2785098 100644
--- a/bsp/hc32/tests/test_can.c
+++ b/bsp/hc32/tests/test_can.c
@@ -329,7 +329,7 @@ int can_sample(int argc, char **argv)
         else
         {
             rt_kprintf("The chip hasn't the can unit!\r\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
     else
@@ -347,7 +347,7 @@ int can_sample(int argc, char **argv)
     if (!can_dev)
     {
         rt_kprintf("find %s failed!\n", can_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (can_mutex == RT_NULL)
diff --git a/bsp/hc32/tests/test_dac.c b/bsp/hc32/tests/test_dac.c
index 98edc761901..c9e77e3c38e 100644
--- a/bsp/hc32/tests/test_dac.c
+++ b/bsp/hc32/tests/test_dac.c
@@ -50,7 +50,7 @@ static int dac_vol_sample(int argc, char *argv[])
         else
         {
             rt_kprintf("The chip hasn't the dac unit!\r\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 
@@ -59,13 +59,13 @@ static int dac_vol_sample(int argc, char *argv[])
     if (dac_dev == RT_NULL)
     {
         rt_kprintf("dac sample run failed! can't find %s device!\n", dac_device_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (RT_EOK != rt_device_control(&dac_dev->parent, RT_DAC_CMD_GET_RESOLUTION, &convertBits))
     {
         rt_kprintf("dac sample can't read resolution!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     convertBits = (1 << (rt_uint8_t)convertBits);
     for (channel = 1; channel < 3; channel++)
@@ -79,7 +79,7 @@ static int dac_vol_sample(int argc, char *argv[])
             if (value > DAC_MAX_OUTPUT_VALUE)
             {
                 rt_kprintf("invalid dac value!!! \n");
-                return RT_ERROR;
+                return -RT_ERROR;
             }
         }
         rt_dac_write(dac_dev, channel, value);
diff --git a/bsp/hc32/tests/test_hwtimer.c b/bsp/hc32/tests/test_hwtimer.c
index ff1e305f01e..3bb8d7738c7 100644
--- a/bsp/hc32/tests/test_hwtimer.c
+++ b/bsp/hc32/tests/test_hwtimer.c
@@ -71,7 +71,7 @@ static int hwtimer_sample(int argc, char *argv[])
     if ((argc != 4) || (rt_strcmp("oneshot", argv[2]) && rt_strcmp("period", argv[2])))
     {
         _hwtimer_cmd_print_usage();
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* 查找定时器设备 */
@@ -79,7 +79,7 @@ static int hwtimer_sample(int argc, char *argv[])
     if (hw_dev == RT_NULL)
     {
         rt_kprintf("hwtimer sample run failed! can't find %s device!\n", argv[1]);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     else
     {
@@ -116,7 +116,7 @@ static int hwtimer_sample(int argc, char *argv[])
     if (rt_device_write(hw_dev, 0, &timeout_s, sizeof(timeout_s)) != sizeof(timeout_s))
     {
         rt_kprintf("set timeout value failed\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     tick = rt_tick_get();
     rt_kprintf("set timeout (%d) ms successful\n", atoi(argv[3]));
diff --git a/bsp/hc32/tests/test_pulse_encoder.c b/bsp/hc32/tests/test_pulse_encoder.c
index 008d9d55af1..000699e85e2 100644
--- a/bsp/hc32/tests/test_pulse_encoder.c
+++ b/bsp/hc32/tests/test_pulse_encoder.c
@@ -159,7 +159,7 @@ static int encoder_sample(int argc, char **argv)
     if ((argc != 4))
     {
         _pulse_cmd_print_usage();
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_pin_mode(TEST_IO_A_PIN, PIN_MODE_OUTPUT);
@@ -170,7 +170,7 @@ static int encoder_sample(int argc, char **argv)
     {
         rt_kprintf("encoder_sample run failed! can't find %s device!\n", argv[1]);
         _pulse_cmd_print_usage();
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     rt_device_open(pulse_encoder_dev, RT_DEVICE_OFLAG_RDONLY);
     rt_device_control(pulse_encoder_dev, PULSE_ENCODER_CMD_CLEAR_COUNT, RT_NULL);
@@ -188,7 +188,7 @@ static int encoder_sample(int argc, char **argv)
         rt_kprintf("**************Self-test failed**************\n");
         rt_device_close(pulse_encoder_dev);
         _pulse_cmd_print_usage();
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     else
     {
diff --git a/bsp/hc32/tests/test_pwm.c b/bsp/hc32/tests/test_pwm.c
index 4dd8a607e01..d675dd89737 100644
--- a/bsp/hc32/tests/test_pwm.c
+++ b/bsp/hc32/tests/test_pwm.c
@@ -33,14 +33,14 @@ static rt_int32_t pwm_sample(int argc, char *argv[])
 
     if (argc != 2)
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     pwm_dev = (struct rt_device_pwm *)rt_device_find(argv[1]);
     if (pwm_dev == RT_NULL)
     {
         rt_kprintf("pwm sample run failed! can't find %s device!\n", argv[1]);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_pwm_set(pwm_dev, PWM_DEV_CHANNEL, period, pulse);
diff --git a/bsp/hc32/tests/test_rtc.c b/bsp/hc32/tests/test_rtc.c
index 2e07374f1a8..8aa0bde8d87 100644
--- a/bsp/hc32/tests/test_rtc.c
+++ b/bsp/hc32/tests/test_rtc.c
@@ -98,7 +98,7 @@ static int rtc_sample(int argc, char *argv[])
         rt_kprintf("\'8\': dump all alarm \n");
         rt_kprintf("\'9\': delete all alarm \n");
 #endif /* RT_USING_ALARM */
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     idx = *(argv[1]) - '0';
@@ -110,12 +110,12 @@ static int rtc_sample(int argc, char *argv[])
         if (!rtc_dev)
         {
             rt_kprintf("find %s failed\n", SAMPLE_RTC_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         if (RT_EOK != rt_device_open(rtc_dev, RT_NULL))
         {
             rt_kprintf("failed to open %s\n", SAMPLE_RTC_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         rt_kprintf("rtc opened\n");
         break;
@@ -124,7 +124,7 @@ static int rtc_sample(int argc, char *argv[])
         if (argc < 3)
         {
             rt_kprintf("unsurpported command\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         temp1 = ((argv[2][0] - '0') * 10) + \
                 (argv[2][1] - '0');
@@ -135,7 +135,7 @@ static int rtc_sample(int argc, char *argv[])
         if (RT_EOK != set_time(temp1, temp2, temp3))
         {
             rt_kprintf("set RTC time failed\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         rt_kprintf("\nset RTC time as %2d:%2d:%2d\n", temp1, temp2, temp3);
         break;
@@ -152,7 +152,7 @@ static int rtc_sample(int argc, char *argv[])
         if (RT_EOK != set_date(temp1, temp2, temp3))
         {
             rt_kprintf("failed to set date for %s\n", SAMPLE_RTC_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         rt_kprintf("\nset RTC date as %4d-%2d-%2d\n", temp1, temp2, temp3);
         break;
@@ -190,7 +190,7 @@ static int rtc_sample(int argc, char *argv[])
         if (RT_NULL == ptr_alarm)
         {
             rt_kprintf("failed to create rtc alarm\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         callback_counter = 2;
         ++alarm_idx;
@@ -200,7 +200,7 @@ static int rtc_sample(int argc, char *argv[])
         if (RT_EOK != rt_alarm_start(ptr_alarm))
         {
             rt_kprintf("failed to start rtc alarm\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         rt_kprintf("rtc alarm started\n");
         break;
@@ -208,7 +208,7 @@ static int rtc_sample(int argc, char *argv[])
         if (RT_EOK != rt_alarm_stop(ptr_alarm))
         {
             rt_kprintf("failed to stop rtc alarm\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         rt_kprintf("rtc alarm stopped\n");
         break;
@@ -216,7 +216,7 @@ static int rtc_sample(int argc, char *argv[])
         if (argc < 3)
         {
             rt_kprintf("unkown para to control rtc alarm\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         switch (argv[2][0])
         {
@@ -253,7 +253,7 @@ static int rtc_sample(int argc, char *argv[])
         if (RT_EOK != rt_device_close(rtc_dev))
         {
             rt_kprintf("failed to close RTC\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         rt_kprintf("unkown rtc command, rtc closed \n");
         break;
diff --git a/bsp/hc32/tests/test_soft_i2c.c b/bsp/hc32/tests/test_soft_i2c.c
index 11feb42d759..4cce95dabde 100644
--- a/bsp/hc32/tests/test_soft_i2c.c
+++ b/bsp/hc32/tests/test_soft_i2c.c
@@ -140,7 +140,7 @@ static int sw_i2c_sample(int argc, char *argv[])
         rt_kprintf("sw_i2c_sample %d: oled ssd1306 init\n", SSD1306_CMD_INIT);
         rt_kprintf("sw_i2c_sample %d: write ssd1306 \n", SSD1306_CMD_DISPLAY);
         rt_kprintf("sw_i2c_sample %d: turn off ssd1306\n", SSD1306_CMD_DEINIT);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     switch (*argv[1] - '0')
@@ -150,7 +150,7 @@ static int sw_i2c_sample(int argc, char *argv[])
         if (NULL == rt_i2c_dev)
         {
             rt_kprintf("failed to find i2c device %s\n", SW_I2C_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         break;
     /* communicate with eeprom to soft i2c read function */
diff --git a/bsp/hc32/tests/test_uart_v1.c b/bsp/hc32/tests/test_uart_v1.c
index 0986bc34922..c53d3d8472a 100644
--- a/bsp/hc32/tests/test_uart_v1.c
+++ b/bsp/hc32/tests/test_uart_v1.c
@@ -187,7 +187,7 @@ int uart_sample_v1(int argc, char *argv[])
     else
     {
         rt_kprintf("argc error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* 查找系统中的串口设备 */
@@ -195,7 +195,7 @@ int uart_sample_v1(int argc, char *argv[])
     if (!serial)
     {
         rt_kprintf("find %s failed!\n", uart_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* modify configure */
@@ -256,7 +256,7 @@ int uart_sample_v1(int argc, char *argv[])
     else
     {
         rt_kprintf("communication mode error, please input cmd: uart_sample_v1 %s int or uart_sample_v1 uartx dma!\n", uart_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (thread != RT_NULL)
@@ -265,7 +265,7 @@ int uart_sample_v1(int argc, char *argv[])
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;
diff --git a/bsp/hc32/tests/test_uart_v2.c b/bsp/hc32/tests/test_uart_v2.c
index 12d2985a70e..72a354fe55b 100644
--- a/bsp/hc32/tests/test_uart_v2.c
+++ b/bsp/hc32/tests/test_uart_v2.c
@@ -208,7 +208,7 @@ int uart_sample_v2(int argc, char *argv[])
     else
     {
         rt_kprintf("argc error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* 查找串口设备 */
@@ -216,7 +216,7 @@ int uart_sample_v2(int argc, char *argv[])
     if (!serial)
     {
         rt_kprintf("find %s failed!\n", uart_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* modify configure */
@@ -277,7 +277,7 @@ int uart_sample_v2(int argc, char *argv[])
     else
     {
         rt_kprintf("communication mode error, please input cmd: uart_sample_v2 %s int or uart_sample_v1 uartx dma!\n", uart_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (thread != RT_NULL)
@@ -286,7 +286,7 @@ int uart_sample_v2(int argc, char *argv[])
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;
diff --git a/bsp/hc32/tests/test_usbd.c b/bsp/hc32/tests/test_usbd.c
index 27b3a1014a3..bb99b92bbde 100644
--- a/bsp/hc32/tests/test_usbd.c
+++ b/bsp/hc32/tests/test_usbd.c
@@ -56,7 +56,7 @@ static int cdc_sample(void)
     if (cdc_dev == RT_NULL)
     {
         rt_kprintf("cdc sample run failed! can't find %s device!\n", USBD_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* 以读写方式打开设备 */
@@ -74,7 +74,7 @@ static int cdc_sample(void)
         if (rt_device_write(cdc_dev, 0, str_write, sizeof(str_write)) != sizeof(str_write))
         {
             rt_kprintf("send test message failed\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         /* 延时1000ms */
         rt_thread_mdelay(1000);
@@ -159,7 +159,7 @@ static int rt_hw_spi_flash_with_sfud_init(void)
         rt_hw_spi_flash_reset(SPI_FLASH_DEVICE_NAME);
         if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME))
         {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 
@@ -211,7 +211,7 @@ static int hid_sample(void)
     if (hid_dev == RT_NULL)
     {
         rt_kprintf("hid sample run failed! can't find %s device!\n", USBD_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* 以收中断方式打开设备 */
@@ -296,7 +296,7 @@ static int winusb_sample(void)
     if (winusb_dev == RT_NULL)
     {
         rt_kprintf("winusb sample run failed! can't find %s device!\n", WINUSB_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* 以读写方式打开设备 */
diff --git a/bsp/hc32/tests/test_wdt.c b/bsp/hc32/tests/test_wdt.c
index 85763023589..5827be269b7 100644
--- a/bsp/hc32/tests/test_wdt.c
+++ b/bsp/hc32/tests/test_wdt.c
@@ -66,14 +66,14 @@ static int wdt_sample(int argc, char *argv[])
         if (!wdg_dev)
         {
             rt_kprintf("find %s failed!\n", WDT_DEVICE_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
 
         ret = rt_device_init(wdg_dev);
         if (ret != RT_EOK)
         {
             rt_kprintf("init %s failed!\n", WDT_DEVICE_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
 
         /* Set timeout (Unit:S) */
@@ -81,7 +81,7 @@ static int wdt_sample(int argc, char *argv[])
         if (ret != RT_EOK)
         {
             rt_kprintf("set %s timeout failed!\n", WDT_DEVICE_NAME);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
 
         /* Get the time when it real effective */