ek Natarajan <vnatarajan@atheros.com> 1298029683 +0530
committer John W. Linville <linville@tuxdriver.com> 1298066097 -0500

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>