core.c

};

static int __init cfg80211_init(void)
{
	int err;

	err = register_pernet_device(&cfg80211_pernet_ops);
	if (err)
		goto out_fail_pernet;

	err = wiphy_sysfs_init();
	if (err)
		goto out_fail_sysfs;

	err = register_netdevice_notifier(&cfg80211_netdev_notifier);
	if (err)
		goto out_fail_notifier;

	err = nl80211_init();
	if (err)
		goto out_fail_nl80211;

	ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);

	err = regulatory_init();
	if (err)
		goto out_fail_reg;

	cfg80211_wq = create_singlethread_workqueue("cfg80211");
	if (!cfg80211_wq)
		goto out_fail_wq;

	return 0;

out_fail_wq:
	regulatory_exit();
out_fail_reg:
	debugfs_remove(ieee80211_debugfs_dir);
out_fail_nl80211:
	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
out_fail_notifier:
	wiphy_sysfs_exit();
out_fail_sysfs:
	unregister_pernet_device(&cfg80211_pernet_ops);
out_fail_pernet:
	return err;
}
subsys_initcall(cfg80211_init);

static void __exit cfg80211_exit(void)
{
	debugfs_remove(ieee80211_debugfs_dir);
	nl80211_exit();
	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
	wiphy_sysfs_exit();
	regulatory_exit();
	unregister_pernet_device(&cfg80211_pernet_ops);
	destroy_workqueue(cfg80211_wq);
}
module_exit(cfg80211_exit);