From 5869e795e07ded955744ab99765d0f183f825f97 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 8 Apr 2014 23:44:26 +0200 Subject: [PATCH] ath9k: fix a scheduling while atomic bug in CSA handling Commit "ath9k: prepare for multi-interface CSA support" added a call to ieee80211_iterate_active_interfaces in atomic context (beacon tasklet), which is crashing. Use ieee80211_iterate_active_interfaces_atomic instead. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 471e0f6..bd9e634 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -312,10 +312,9 @@ static void ath9k_csa_update_vif(void *data, u8 *mac, struct ieee80211_vif *vif) void ath9k_csa_update(struct ath_softc *sc) { - ieee80211_iterate_active_interfaces(sc->hw, - IEEE80211_IFACE_ITER_NORMAL, - ath9k_csa_update_vif, - sc); + ieee80211_iterate_active_interfaces_atomic(sc->hw, + IEEE80211_IFACE_ITER_NORMAL, + ath9k_csa_update_vif, sc); } void ath9k_beacon_tasklet(unsigned long data) -- 2.7.4