From: Johannes Berg <johannes.berg@xxxxxxxxx> We disable the carrier, but that doesn't immediately take effect, and as such a concurrent transmit can go into the driver while drv_leave_ibss() is happening and confuse it. Synchronize to avoid that. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx> --- net/mac80211/ibss.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index a1b4178deccf..dfa125219e47 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -245,6 +245,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, sdata->vif.cfg.ibss_creator = false; sdata->vif.bss_conf.enable_beacon = false; netif_carrier_off(sdata->dev); + synchronize_net(); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS | BSS_CHANGED_BEACON_ENABLED); -- 2.34.1
