1 files changed, 1 insertions, 10 deletions

diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index f8ded84b7be8..ef5b6dc7b7f1 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1430,18 +1430,10 @@ static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
                 if (!sta_info->ht_sta)
                         return -EOPNOTSUPP;
 
-                rcu_read_lock();
-                if (rcu_dereference(sta_info->agg[tid])) {
-                        rcu_read_unlock();
-                        return -EBUSY;
-                }
-
                 tid_info = kzalloc(sizeof(struct carl9170_sta_tid),
                                    GFP_ATOMIC);
-                if (!tid_info) {
-                        rcu_read_unlock();
+                if (!tid_info)
                         return -ENOMEM;
-                }
 
                 tid_info->hsn = tid_info->bsn = tid_info->snx = (*ssn);
                 tid_info->state = CARL9170_TID_STATE_PROGRESS;
@@ -1460,7 +1452,6 @@ static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
                 list_add_tail_rcu(&tid_info->list, &ar->tx_ampdu_list);
                 rcu_assign_pointer(sta_info->agg[tid], tid_info);
                 spin_unlock_bh(&ar->tx_ampdu_list_lock);
-                rcu_read_unlock();
 
                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
                 break;