1 files changed, 36 insertions, 18 deletions

diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 730778a2c90..6326d343986 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -6,12 +6,37 @@
 #include "driver-ops.h"
 #include "led.h"
 
+/* return value indicates whether the driver should be further notified */
+static bool ieee80211_quiesce(struct ieee80211_sub_if_data *sdata)
+{
+        switch (sdata->vif.type) {
+        case NL80211_IFTYPE_STATION:
+                ieee80211_sta_quiesce(sdata);
+                return true;
+        case NL80211_IFTYPE_ADHOC:
+                ieee80211_ibss_quiesce(sdata);
+                return true;
+        case NL80211_IFTYPE_MESH_POINT:
+                ieee80211_mesh_quiesce(sdata);
+                return true;
+        case NL80211_IFTYPE_AP_VLAN:
+        case NL80211_IFTYPE_MONITOR:
+                /* don't tell driver about this */
+                return false;
+        default:
+                return true;
+        }
+}
+
 int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 {
         struct ieee80211_local *local = hw_to_local(hw);
         struct ieee80211_sub_if_data *sdata;
         struct sta_info *sta;
 
+        if (!local->open_count)
+                goto suspend;
+
         ieee80211_scan_cancel(local);
 
         if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
@@ -50,11 +75,19 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
         local->wowlan = wowlan && local->open_count;
         if (local->wowlan) {
                 int err = drv_suspend(local, wowlan);
-                if (err) {
+                if (err < 0) {
                         local->quiescing = false;
                         return err;
+                } else if (err > 0) {
+                        WARN_ON(err != 1);
+                        local->wowlan = false;
+                } else {
+                        list_for_each_entry(sdata, &local->interfaces, list) {
+                                cancel_work_sync(&sdata->work);
+                                ieee80211_quiesce(sdata);
+                        }
+                        goto suspend;
                 }
-                goto suspend;
         }
 
         /* disable keys */
@@ -82,23 +115,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
         list_for_each_entry(sdata, &local->interfaces, list) {
                 cancel_work_sync(&sdata->work);
 
-                switch(sdata->vif.type) {
-                case NL80211_IFTYPE_STATION:
-                        ieee80211_sta_quiesce(sdata);
-                        break;
-                case NL80211_IFTYPE_ADHOC:
-                        ieee80211_ibss_quiesce(sdata);
-                        break;
-                case NL80211_IFTYPE_MESH_POINT:
-                        ieee80211_mesh_quiesce(sdata);
-                        break;
-                case NL80211_IFTYPE_AP_VLAN:
-                case NL80211_IFTYPE_MONITOR:
-                        /* don't tell driver about this */
+                if (!ieee80211_quiesce(sdata))
                         continue;
-                default:
-                        break;
-                }
 
                 if (!ieee80211_sdata_running(sdata))
                         continue;