package/mac80211/patches/540-ath9k_fix_survey_crash.patch

   1 --- a/drivers/net/wireless/ath/ath9k/main.c
   2 +++ b/drivers/net/wireless/ath/ath9k/main.c
   3 @@ -183,6 +183,9 @@ static void ath_update_survey_stats(stru
   4         struct ath_cycle_counters *cc = &common->cc_survey;
   5         unsigned int div = common->clockrate * 1000;
   6
   7 +       if (!ah->curchan)
   8 +               return;
   9 +
  10         if (ah->power_mode == ATH9K_PM_AWAKE)
  11                 ath_hw_cycle_counters_update(common);
  12