When cleaning up beacon buffers and slots, ath9k currently checks if
sc->ah->opmode is set to a beacon related mode before cleaning up
buffers.
An unfortunate ordering of interface up/down commands can lead to
sc->ah->opmode being set to monitor mode, while there are AP interfaces
present on the same wiphy.
Always cleaning up beacon buffers if present fixes this issue.
Cc: stable@xxxxxxxxxx
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
---
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1471,10 +1471,10 @@ static void ath9k_remove_interface(struc
(sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) {
ath9k_ps_wakeup(sc);
ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
- ath_beacon_return(sc, avp);
ath9k_ps_restore(sc);
}
+ ath_beacon_return(sc, avp);
sc->sc_flags &= ~SC_OP_BEACONS;
for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
--
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