file->private_data = NULL;
chip->num_opens--;
del_singleshot_timer_sync(&chip->user_read_timer);
+ flush_scheduled_work();
atomic_set(&chip->data_pending, 0);
put_device(chip->dev);
kfree(chip->data_buffer);
int ret_size;
del_singleshot_timer_sync(&chip->user_read_timer);
+ flush_scheduled_work();
ret_size = atomic_read(&chip->data_pending);
atomic_set(&chip->data_pending, 0);
if (ret_size > 0) { /* relay data */