From: Rajkumar Manoharan Date: Mon, 31 Jan 2011 18:17:46 +0000 (+0530) Subject: ath9k: do not access hw registers in FULL SLEEP X-Git-Tag: v2.6.39-rc1~468^2~403^2~45 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4c89fe954d929781126af41691fba1bc670293a5;p=platform%2Fkernel%2Flinux-3.10.git ath9k: do not access hw registers in FULL SLEEP The opmode recalculation is accessing hw registers. When it is called from remove interface callback and if there are no vifs present then hw is moved to FULL SLEEP by radio disable. So use power save wrappers before accessing hw registers in calculating opmode state. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 09eb026..c9925e9 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1354,6 +1354,7 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, ath9k_calculate_iter_data(hw, vif, &iter_data); + ath9k_ps_wakeup(sc); /* Set BSSID mask. */ memcpy(common->bssidmask, iter_data.mask, ETH_ALEN); ath_hw_setbssidmask(common); @@ -1388,6 +1389,7 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, } ath9k_hw_set_interrupts(ah, ah->imask); + ath9k_ps_restore(sc); /* Set up ANI */ if ((iter_data.naps + iter_data.nadhocs) > 0) {