C++ ieee80211_unregister_hw函数代码示例

void ath9k_deinit_device(struct ath_softc *sc)
{
	struct ieee80211_hw *hw = sc->hw;
	int i = 0;

	ath9k_ps_wakeup(sc);

	wiphy_rfkill_stop_polling(sc->hw->wiphy);
	ath_deinit_leds(sc);

	for (i = 0; i < sc->num_sec_wiphy; i++) {
		struct ath_wiphy *aphy = sc->sec_wiphy[i];
		if (aphy == NULL)
			continue;
		sc->sec_wiphy[i] = NULL;
		ieee80211_unregister_hw(aphy->hw);
		ieee80211_free_hw(aphy->hw);
	}
	kfree(sc->sec_wiphy);

	ieee80211_unregister_hw(hw);
	ath_rx_cleanup(sc);
	ath_tx_cleanup(sc);
	ath9k_deinit_softc(sc);
}

/*
* called from both kernel as from wl_*()
* precondition: perimeter lock is not acquired.
*/
static void wl_remove(struct pci_dev *pdev)
{
	struct wl_info *wl;
	struct ieee80211_hw *hw;
	int status;

	hw = pci_get_drvdata(pdev);
	wl = HW_TO_WL(hw);
	if (!wl) {
		pr_err("wl: wl_remove: pci_get_drvdata failed\n");
		return;
	}

	WL_LOCK(wl);
	status = wlc_chipmatch(pdev->vendor, pdev->device);
	WL_UNLOCK(wl);
	if (!status) {
		wiphy_err(wl->wiphy, "wl: wl_remove: wlc_chipmatch failed\n");
		return;
	}
	if (wl->wlc) {
		wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
		wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
		ieee80211_unregister_hw(hw);
		WL_LOCK(wl);
		wl_down(wl);
		WL_UNLOCK(wl);
	}
	pci_disable_device(pdev);

	wl_free(wl);

	pci_set_drvdata(pdev, NULL);
	ieee80211_free_hw(hw);
}

int cw1200_register_common(struct ieee80211_hw *dev)
{
	struct cw1200_common *priv = dev->priv;
	int err;

	err = cw1200_pm_init(&priv->pm_state, priv);
	if (err) {
		cw1200_dbg(CW1200_DBG_ERROR, "Cannot init PM. (%d).\n",
				err);
		return err;
	}

	err = ieee80211_register_hw(dev);
	if (err) {
		cw1200_dbg(CW1200_DBG_ERROR, "Cannot register device (%d).\n",
				err);
		cw1200_pm_deinit(&priv->pm_state);
		return err;
	}

#ifdef CONFIG_CW1200_LEDS
	err = cw1200_init_leds(priv);
	if (err) {
		cw1200_pm_deinit(&priv->pm_state);
		ieee80211_unregister_hw(dev);
		return err;
	}
#endif /* CONFIG_CW1200_LEDS */

	cw1200_debug_init(priv);

	cw1200_dbg(CW1200_DBG_MSG, "is registered as '%s'\n",
			wiphy_name(dev->wiphy));
	return 0;
}

void rtl_usb_disconnect(struct usb_interface *intf)
{
	struct ieee80211_hw *hw = usb_get_intfdata(intf);
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	if (unlikely(!rtlpriv))
		return;

	/* just in case driver is removed before firmware callback */
	wait_for_completion(&rtlpriv->firmware_loading_complete);
	/*ieee80211_unregister_hw will call ops_stop */
	if (rtlmac->mac80211_registered == 1) {
		ieee80211_unregister_hw(hw);
		rtlmac->mac80211_registered = 0;
	} else {
		rtl_deinit_deferred_work(hw);
		rtlpriv->intf_ops->adapter_stop(hw);
	}
	/*deinit rfkill */
	/* rtl_deinit_rfkill(hw); */
	rtl_usb_deinit(hw);
	rtl_deinit_core(hw);
	kfree(rtlpriv->usb_data);
	rtlpriv->cfg->ops->deinit_sw_leds(hw);
	rtlpriv->cfg->ops->deinit_sw_vars(hw);
	_rtl_usb_io_handler_release(hw);
	usb_put_dev(rtlusb->udev);
	usb_set_intfdata(intf, NULL);
	ieee80211_free_hw(hw);
}

static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
{
	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
	int i;

	iwl_mvm_leds_exit(mvm);

	iwl_mvm_tt_exit(mvm);

	ieee80211_unregister_hw(mvm->hw);

	kfree(mvm->scan_cmd);
	vfree(mvm->fw_error_dump);
	kfree(mvm->fw_error_sram);
	kfree(mvm->fw_error_rxf);
	kfree(mvm->mcast_filter_cmd);
	mvm->mcast_filter_cmd = NULL;

#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
	kfree(mvm->d3_resume_sram);
#endif

	iwl_trans_op_mode_leave(mvm->trans);

	iwl_phy_db_free(mvm->phy_db);
	mvm->phy_db = NULL;

	iwl_free_nvm_data(mvm->nvm_data);
	for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
		kfree(mvm->nvm_sections[i].data);

	ieee80211_free_hw(mvm->hw);
}

static void cw1200_unregister_common(struct ieee80211_hw *dev)
{
	struct cw1200_common *priv = dev->priv;
	int i;

	ieee80211_unregister_hw(dev);

	del_timer_sync(&priv->mcast_timeout);
	cw1200_unregister_bh(priv);

	cw1200_debug_release(priv);

	mutex_destroy(&priv->conf_mutex);

	wsm_buf_deinit(&priv->wsm_cmd_buf);

	destroy_workqueue(priv->workqueue);
	priv->workqueue = NULL;

	if (priv->sdd) {
		release_firmware(priv->sdd);
		priv->sdd = NULL;
	}

	for (i = 0; i < 4; ++i)
		cw1200_queue_deinit(&priv->tx_queue[i]);

	cw1200_queue_stats_deinit(&priv->tx_queue_stats);
#ifdef CONFIG_PM
	cw1200_pm_deinit(&priv->pm_state);
#endif
}

void cw1200_unregister_common(struct ieee80211_hw *dev)
{
	struct cw1200_common *priv = dev->priv;
	int i;

	ieee80211_unregister_hw(dev);

	del_timer_sync(&priv->mcast_timeout);

	cw1200_debug_release(priv);

#ifdef CONFIG_CW1200_LEDS
	cw1200_unregister_leds(priv);
#endif /* CONFIG_CW1200_LEDS */

	mutex_destroy(&priv->conf_mutex);

	wsm_buf_deinit(&priv->wsm_cmd_buf);

	destroy_workqueue(priv->workqueue);
	priv->workqueue = NULL;

	if (priv->skb_cache) {
		dev_kfree_skb(priv->skb_cache);
		priv->skb_cache = NULL;
	}

	for (i = 0; i < 4; ++i)
		cw1200_queue_deinit(&priv->tx_queue[i]);
	cw1200_queue_stats_deinit(&priv->tx_queue_stats);
	cw1200_pm_deinit(&priv->pm_state);
}

void mt76_unregister_device(struct mt76_dev *dev)
{
	struct ieee80211_hw *hw = dev->hw;

	mt76_tx_status_check(dev, NULL, true);
	ieee80211_unregister_hw(hw);
	mt76_tx_free(dev);
}

static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
{
	struct ieee80211_hw *hw = priv->hw;

	wiphy_rfkill_stop_polling(hw->wiphy);
	ath9k_deinit_leds(priv);
	ieee80211_unregister_hw(hw);
	ath9k_rx_cleanup(priv);
	ath9k_tx_cleanup(priv);
	ath9k_deinit_priv(priv);
}

static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev)
{
	if (test_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags))
		ieee80211_unregister_hw(rt2x00dev->hw);

	if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) {
		kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
		kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates);
		rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
		rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
	}
}

void p54_unregister_common(struct ieee80211_hw *dev)
{
	struct p54_common *priv = dev->priv;

#ifdef CONFIG_P54_LEDS
	p54_unregister_leds(priv);
#endif /* CONFIG_P54_LEDS */

	ieee80211_unregister_hw(dev);
	mutex_destroy(&priv->conf_mutex);
	mutex_destroy(&priv->eeprom_mutex);
}

static void mt7601u_disconnect(struct usb_interface *usb_intf)
{
	struct mt7601u_dev *dev = usb_get_intfdata(usb_intf);

	ieee80211_unregister_hw(dev->hw);
	mt7601u_cleanup(dev);

	usb_set_intfdata(usb_intf, NULL);
	usb_put_dev(interface_to_usbdev(usb_intf));

	destroy_workqueue(dev->stat_wq);
	ieee80211_free_hw(dev->hw);
}

static void mt76x2u_disconnect(struct usb_interface *intf)
{
	struct usb_device *udev = interface_to_usbdev(intf);
	struct mt76x02_dev *dev = usb_get_intfdata(intf);
	struct ieee80211_hw *hw = mt76_hw(dev);

	set_bit(MT76_REMOVED, &dev->mt76.state);
	ieee80211_unregister_hw(hw);
	mt76x2u_cleanup(dev);

	ieee80211_free_hw(hw);
	usb_set_intfdata(intf, NULL);
	usb_put_dev(udev);
}

static void __devexit p54u_disconnect(struct usb_interface *intf)
{
	struct ieee80211_hw *dev = usb_get_intfdata(intf);
	struct p54u_priv *priv;

	if (!dev)
		return;

	ieee80211_unregister_hw(dev);

	priv = dev->priv;
	usb_put_dev(interface_to_usbdev(intf));
	p54_free_common(dev);
	ieee80211_free_hw(dev);
}

static void mac80211_hwsim_free(void)
{
	int i;

	for (i = 0; i < hwsim_radio_count; i++) {
		if (hwsim_radios[i]) {
			struct mac80211_hwsim_data *data;
			data = hwsim_radios[i]->priv;
			ieee80211_unregister_hw(hwsim_radios[i]);
			device_unregister(data->dev);
			ieee80211_free_hw(hwsim_radios[i]);
		}
	}
	kfree(hwsim_radios);
	class_destroy(hwsim_class);
}