This driver calls kthread_run() in probe, but forgets to call
kthread_stop() in probe failure and remove.
Add the missed kthread_stop() to fix it.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
        if (unlikely(ret)) {
                netif_err(priv, probe, ndev, "Error %d initializing card encx24j600 card\n",
                          ret);
-               goto out_free;
+               goto out_stop;
        }
 
        eidled = encx24j600_read_reg(priv, EIDLED);
 
 out_unregister:
        unregister_netdev(priv->ndev);
+out_stop:
+       kthread_stop(priv->kworker_task);
 out_free:
        free_netdev(ndev);
 
        struct encx24j600_priv *priv = dev_get_drvdata(&spi->dev);
 
        unregister_netdev(priv->ndev);
+       kthread_stop(priv->kworker_task);
 
        free_netdev(priv->ndev);