diff --git a/components/drivers/can/can.c b/components/drivers/can/can.c
index e0db37701818e352b6b6b8d000a6b0620fd8df95..0ed971053d5fe833d9a1f90ed4aa66bb2ded1376 100644
--- a/components/drivers/can/can.c
+++ b/components/drivers/can/can.c
@@ -322,10 +322,6 @@ static rt_err_t rt_can_open(struct rt_device *dev, rt_uint16_t oflag)
             /* configure low level device */
             can->ops->control(can, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
         }
-        else
-        {
-            can->can_rx = RT_NULL;
-        }
     }
 
     if (can->can_tx == RT_NULL)
@@ -356,10 +352,6 @@ static rt_err_t rt_can_open(struct rt_device *dev, rt_uint16_t oflag)
             /* configure low level device */
             can->ops->control(can, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_TX);
         }
-        else
-        {
-            can->can_tx = RT_NULL;
-        }
     }
 
     can->ops->control(can, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_CAN_INT_ERR);