mac80211: Cancel the dynamic ps timer in ioctl_siwpower.

If the dynamic power save timer has been started before the power save
is disabled using iwconfig, we fail to cancel the timer. Hence cancel it
while disabling power save.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 70a29b657b61..5c88b8246bbb 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -906,6 +906,8 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
                                         IEEE80211_CONF_CHANGE_PS);
                         if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
                                 ieee80211_send_nullfunc(local, sdata, 0);
+                        del_timer_sync(&local->dynamic_ps_timer);
+                        cancel_work_sync(&local->dynamic_ps_enable_work);
                 }
         }