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iwlwifi: mvm: disconnect if CSA time event fails scheduling 

If this situation ever happens, the mac80211 state machine gets
confused because it never clears csa_active. There was a separate
bug that lead to this happening with a working connection, but it
isn't very robust to try to keep the connection up in this case.

When removing the time event the CSA essentially procedure stops,
so the safest thing to do is to disconnect in this case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Johannes Berg 2015-03-10 10:47:57 +01:00 committed by Emmanuel Grumbach
parent a3a0a5992e
commit 060b4460c4
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/iwlwifi/mvm/time-event.c
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@ -197,6 +197,8 @@ iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm,
struct iwl_time_event_notif *notif)
{
if (!le32_to_cpu(notif->status)) {
if (te_data->vif->type == NL80211_IFTYPE_STATION)
ieee80211_connection_loss(te_data->vif);
IWL_DEBUG_TE(mvm, "CSA time event failed to start\n");
iwl_mvm_te_clear_data(mvm, te_data);
return;