diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/sta.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/sta.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c index 2677d1c0e1a1..f339ef884250 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/iwlwifi/mvm/sta.c @@ -851,7 +851,7 @@ static int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, return ret; } -static const u8 tid_to_mac80211_ac[] = { +const u8 tid_to_mac80211_ac[] = { IEEE80211_AC_BE, IEEE80211_AC_BK, IEEE80211_AC_BK, @@ -902,10 +902,18 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return -EIO; } + spin_lock_bh(&mvmsta->lock); + + /* possible race condition - we entered D0i3 while starting agg */ + if (test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) { + spin_unlock_bh(&mvmsta->lock); + IWL_ERR(mvm, "Entered D0i3 while starting Tx agg\n"); + return -EIO; + } + /* the new tx queue is still connected to the same mac80211 queue */ mvm->queue_to_mac80211[txq_id] = vif->hw_queue[tid_to_mac80211_ac[tid]]; - spin_lock_bh(&mvmsta->lock); tid_data = &mvmsta->tid_data[tid]; tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); tid_data->txq_id = txq_id; |