[bsp] fix the return of the function(drv_pwm_control) in stm32 drv_pwm
@@ -396,7 +396,7 @@ static rt_err_t drv_pwm_control(struct rt_device_pwm *device, int cmd, void *arg
case PWM_CMD_GET:
return drv_pwm_get(htim, configuration);
default:
- return RT_EINVAL;
+ return -RT_EINVAL;
}
}
