+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -183,6 +183,9 @@ static void ath_update_survey_stats(stru
- struct ath_cycle_counters *cc = &common->cc_survey;
- unsigned int div = common->clockrate * 1000;
-
-+ if (!ah->curchan)
-+ return;
-+
- if (ah->power_mode == ATH9K_PM_AWAKE)
- ath_hw_cycle_counters_update(common);
-