Merge branch 'linus' into perf/core

Reason: Further changes conflict with upstream fixes

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

5 files changed, 23 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index a732f1094e5d..7d614c4d3c62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -1299,6 +1299,11 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
         sta_id = ba_resp->sta_id;
         tid = ba_resp->tid;
         agg = &priv->stations[sta_id].tid[tid].agg;
+        if (unlikely(agg->txq_id != scd_flow)) {
+                IWL_ERR(priv, "BA scd_flow %d does not match txq_id %d\n",
+                        scd_flow, agg->txq_id);
+                return;
+        }
 
         /* Find index just before block-ack window */
         index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 7726e67044c0..24aff654fa9c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3391,10 +3391,12 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
         int ret;
         u8 sta_id;
 
-        sta_priv->common.sta_id = IWL_INVALID_STATION;
-
         IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
                         sta->addr);
+        mutex_lock(&priv->mutex);
+        IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
+                        sta->addr);
+        sta_priv->common.sta_id = IWL_INVALID_STATION;
 
         atomic_set(&sta_priv->pending_frames, 0);
         if (vif->type == NL80211_IFTYPE_AP)
@@ -3406,6 +3408,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
                 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
                         sta->addr, ret);
                 /* Should we return success if return code is EEXIST ? */
+                mutex_unlock(&priv->mutex);
                 return ret;
         }
 
@@ -3415,6 +3418,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
         IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
                        sta->addr);
         iwl_rs_rate_init(priv, sta, sta_id);
+        mutex_unlock(&priv->mutex);
 
         return 0;
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 5d3f51ff2f0d..386c5f96eff8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -491,6 +491,7 @@ void iwl_bg_abort_scan(struct work_struct *work)
 
         mutex_lock(&priv->mutex);
 
+        cancel_delayed_work_sync(&priv->scan_check);
         set_bit(STATUS_SCAN_ABORTING, &priv->status);
         iwl_send_scan_abort(priv);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 83a26361a9b5..c27c13fbb1ae 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -1373,10 +1373,14 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw,
 
         IWL_DEBUG_INFO(priv, "received request to remove station %pM\n",
                         sta->addr);
+        mutex_lock(&priv->mutex);
+        IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n",
+                        sta->addr);
         ret = iwl_remove_station(priv, sta_common->sta_id, sta->addr);
         if (ret)
                 IWL_ERR(priv, "Error removing station %pM\n",
                         sta->addr);
+        mutex_unlock(&priv->mutex);
         return ret;
 }
 EXPORT_SYMBOL(iwl_mac_sta_remove);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 6c353cacc8d6..a27872de4106 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3437,10 +3437,13 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
         bool is_ap = vif->type == NL80211_IFTYPE_STATION;
         u8 sta_id;
 
-        sta_priv->common.sta_id = IWL_INVALID_STATION;
-
         IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
                         sta->addr);
+        mutex_lock(&priv->mutex);
+        IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
+                        sta->addr);
+        sta_priv->common.sta_id = IWL_INVALID_STATION;
+
 
         ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap,
                                      &sta_id);
@@ -3448,6 +3451,7 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
                 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
                         sta->addr, ret);
                 /* Should we return success if return code is EEXIST ? */
+                mutex_unlock(&priv->mutex);
                 return ret;
         }
 
@@ -3457,6 +3461,7 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
         IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
                        sta->addr);
         iwl3945_rs_rate_init(priv, sta, sta_id);
+        mutex_unlock(&priv->mutex);
 
         return 0;
 }