mac80211: Clear PS related flag on disabling power save.

Clear IEEE80211_STA_NULLFUNC_ACKED flag on disabling power
save. Without this fix, there is a chance of setting CONF_PS
before sending nullfunc frame.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 38e593939727..d0f91d74eaf0 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -236,6 +236,7 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx)
         if (local->hw.conf.flags & IEEE80211_CONF_PS) {
                 ieee80211_stop_queues_by_reason(&local->hw,
                                                 IEEE80211_QUEUE_STOP_REASON_PS);
+                ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED;
                 ieee80211_queue_work(&local->hw,
                                      &local->dynamic_ps_disable_work);
         }