This reverts commit 
02dbfa5e5583523035f05636c614a0eca77f1aab. I grabbed
the wrong version from the list and will pull the proper one from Peter
Rosin's mux tree.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
 
        while (muxc->num_adapters) {
                struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters];
                struct i2c_mux_priv *priv = adap->algo_data;
-               struct device_node *np = adap->dev.of_node;
 
                muxc->adapter[muxc->num_adapters] = NULL;
 
 
                sysfs_remove_link(&priv->adap.dev.kobj, "mux_device");
                i2c_del_adapter(adap);
-               of_node_put(np);
                kfree(priv);
        }
 }