From: Rajkumar Manoharan Date: Fri, 8 Apr 2011 11:36:25 +0000 (+0530) Subject: ath9k: Fix kernel panic on module unload X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=f60c49b67dd6db2ccb740a6a671414f9dab00c4f;p=openwrt%2Fstaging%2Fblogic.git ath9k: Fix kernel panic on module unload The commit "ath9k: configure beacons based on hw opmode" introduced a regression which leads to kernel panic. Failed to stop ani timer during the driver unload while any of the beaconing vif is running. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index eccb0ec87adb..b56f69e7677b 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -320,6 +320,7 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp) if (avp->av_bcbuf != NULL) { struct ath_buf *bf; + avp->is_bslot_active = false; if (avp->av_bslot != -1) { sc->beacon.bslot[avp->av_bslot] = NULL; sc->nbcnvifs--; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 93b9fa2cbaf8..a55a8929810b 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1375,6 +1375,9 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, if ((iter_data.naps + iter_data.nadhocs) > 0) { sc->sc_flags |= SC_OP_ANI_RUN; ath_start_ani(common); + } else { + sc->sc_flags &= ~SC_OP_ANI_RUN; + del_timer_sync(&common->ani.timer); } }