4 files changed, 16 insertions, 13 deletions

diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index dcd19bc337d..b29c80def35 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -506,7 +506,7 @@ bool ath_stoprecv(struct ath_softc *sc)
 			"confusing the DMA engine when we start RX up\n");
 		ATH_DBG_WARN_ON_ONCE(!stopped);
 	}
-	return stopped || reset;
+	return stopped && !reset;
 }
 
 void ath_flushrecv(struct ath_softc *sc)
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
index 5c40502f869..fbec88d48f1 100644
--- a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
+++ b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
@@ -1127,12 +1127,16 @@ int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
 	     q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
 
 		tx_info = &txq->txb[txq->q.read_ptr];
-		iwl4965_tx_status(priv, tx_info,
-				 txq_id >= IWL4965_FIRST_AMPDU_QUEUE);
+
+		if (WARN_ON_ONCE(tx_info->skb == NULL))
+			continue;
 
 		hdr = (struct ieee80211_hdr *)tx_info->skb->data;
-		if (hdr && ieee80211_is_data_qos(hdr->frame_control))
+		if (ieee80211_is_data_qos(hdr->frame_control))
 			nfreed++;
+
+		iwl4965_tx_status(priv, tx_info,
+				 txq_id >= IWL4965_FIRST_AMPDU_QUEUE);
 		tx_info->skb = NULL;
 
 		priv->cfg->ops->lib->txq_free_tfd(priv, txq);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index dfdbea6e8f9..fbbde0712fa 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -335,7 +335,6 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
 	struct ieee80211_channel *channel = conf->channel;
 	const struct iwl_channel_info *ch_info;
 	int ret = 0;
-	bool ht_changed[NUM_IWL_RXON_CTX] = {};
 
 	IWL_DEBUG_MAC80211(priv, "changed %#x", changed);
 
@@ -383,10 +382,8 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
 
 		for_each_context(priv, ctx) {
 			/* Configure HT40 channels */
-			if (ctx->ht.enabled != conf_is_ht(conf)) {
+			if (ctx->ht.enabled != conf_is_ht(conf))
 				ctx->ht.enabled = conf_is_ht(conf);
-				ht_changed[ctx->ctxid] = true;
-			}
 
 			if (ctx->ht.enabled) {
 				if (conf_is_ht40_minus(conf)) {
@@ -455,8 +452,6 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
 		if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
 			continue;
 		iwlagn_commit_rxon(priv, ctx);
-		if (ht_changed[ctx->ctxid])
-			iwlagn_update_qos(priv, ctx);
 	}
  out:
 	mutex_unlock(&priv->mutex);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index a709d05c586..2dd7d54a796 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -1224,12 +1224,16 @@ int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
 	     q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
 
 		tx_info = &txq->txb[txq->q.read_ptr];
-		iwlagn_tx_status(priv, tx_info,
-				 txq_id >= IWLAGN_FIRST_AMPDU_QUEUE);
+
+		if (WARN_ON_ONCE(tx_info->skb == NULL))
+			continue;
 
 		hdr = (struct ieee80211_hdr *)tx_info->skb->data;
-		if (hdr && ieee80211_is_data_qos(hdr->frame_control))
+		if (ieee80211_is_data_qos(hdr->frame_control))
 			nfreed++;
+
+		iwlagn_tx_status(priv, tx_info,
+				 txq_id >= IWLAGN_FIRST_AMPDU_QUEUE);
 		tx_info->skb = NULL;
 
 		if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl)