mac80211: destroy virtual monitor interface across suspend

It has to be removed from the driver, but completely
destroying it helps handle unplug of a device during
suspend since then the channel context handling etc.
doesn't have to happen later when it's removed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index b98d927..d1c021b 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -21,6 +21,8 @@
 
 	ieee80211_roc_purge(local, NULL);
 
+	ieee80211_del_virtual_monitor(local);
+
 	if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
 		mutex_lock(&local->sta_mtx);
 		list_for_each_entry(sta, &local->sta_list, list) {
@@ -103,10 +105,6 @@
 		drv_remove_interface(local, sdata);
 	}
 
-	sdata = rtnl_dereference(local->monitor_sdata);
-	if (sdata)
-		drv_remove_interface(local, sdata);
-
 	/*
 	 * We disconnected on all interfaces before suspend, all channel
 	 * contexts should be released.