Merge remote-tracking branches 'asoc/fix/blackfin', 'asoc/fix/da9055', 'asoc/fix...

[firefly-linux-kernel-4.4.55.git] / net / mac80211 / ht.c

diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index fab7b91923e0a8b93313797b53a469234ce83506..70dd013de8361e39c95264eeae967e193fe240e5 100644 (file)
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -466,7 +466,9 @@ void ieee80211_request_smps_ap_work(struct work_struct *work)
                             u.ap.request_smps_work);
 
        sdata_lock(sdata);
-       __ieee80211_request_smps_ap(sdata, sdata->u.ap.driver_smps_mode);
+       if (sdata_dereference(sdata->u.ap.beacon, sdata))
+               __ieee80211_request_smps_ap(sdata,
+                                           sdata->u.ap.driver_smps_mode);
        sdata_unlock(sdata);
 }