iwlwifi: create iwl_mac80211 unregister routine

The mac80211 setup_register operations are collected in one routine,
but the cleanup routines are not.  Create a routine for this.
Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -1915,12 +1915,7 @@ void __devexit iwl_remove(struct iwl_priv * priv)
 	set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
 
 	iwl_testmode_cleanup(priv);
-	iwl_leds_exit(priv);
-
-	if (priv->mac80211_registered) {
-		ieee80211_unregister_hw(priv->hw);
-		priv->mac80211_registered = 0;
-	}
+	iwlagn_mac_unregister(priv);
 
 	iwl_tt_exit(priv);
 

drivers/net/wireless/iwlwifi/iwl-agn.h

@@ -91,6 +91,7 @@ void iwlagn_prepare_restart(struct iwl_priv *priv);
 struct ieee80211_hw *iwl_alloc_all(void);
 int iwlagn_mac_setup_register(struct iwl_priv *priv,
 			      struct iwlagn_ucode_capabilities *capa);
+void iwlagn_mac_unregister(struct iwl_priv *priv);
 
 /* RXON */
 int iwlagn_set_pan_params(struct iwl_priv *priv);

drivers/net/wireless/iwlwifi/iwl-mac80211.c

@@ -245,6 +245,15 @@ int iwlagn_mac_setup_register(struct iwl_priv *priv,
 	return 0;
 }
 
+void iwlagn_mac_unregister(struct iwl_priv *priv)
+{
+	if (!priv->mac80211_registered)
+		return;
+	iwl_leds_exit(priv);
+	ieee80211_unregister_hw(priv->hw);
+	priv->mac80211_registered = 0;
+}
+
 static int __iwl_up(struct iwl_priv *priv)
 {
 	struct iwl_rxon_context *ctx;