mac80211: fix resume from WoWLAN

My commit 529ba6e9
("mac80211: clean up association better in suspend")
introduced a bug when resuming from WoWLAN when a
device reset is desired. This case must not use the
suspend_bss_conf as it hasn't been stored.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

net/mac80211/util.c

@@ -1358,8 +1358,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	struct ieee80211_chanctx *ctx;
 	struct sta_info *sta;
 	int res, i;
-
 #ifdef CONFIG_PM
+	bool reconfig_due_to_wowlan = false;
+
 	if (local->suspended)
 		local->resuming = true;
 
@@ -1377,6 +1378,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		 * res is 1, which means the driver requested
 		 * to go through a regular reset on wakeup.
 		 */
+		reconfig_due_to_wowlan = true;
 	}
 #endif
 	/* everything else happens only if HW was up & running */
@@ -1527,7 +1529,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			  BSS_CHANGED_TXPOWER;
 
 #ifdef CONFIG_PM
-		if (local->resuming)
+		if (local->resuming && !reconfig_due_to_wowlan)
 			sdata->vif.bss_conf = sdata->suspend_bss_conf;
 #endif