ath5k: fix tx path skb leaks

ieee80211_free_txskb() needs to be used instead of dev_kfree_skb_any for
tx packets passed to the driver from mac80211

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath5k/base.c

@@ -849,7 +849,7 @@ ath5k_txbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf)
 		return;
 	dma_unmap_single(ah->dev, bf->skbaddr, bf->skb->len,
 			DMA_TO_DEVICE);
-	dev_kfree_skb_any(bf->skb);
+	ieee80211_free_txskb(ah->hw, bf->skb);
 	bf->skb = NULL;
 	bf->skbaddr = 0;
 	bf->desc->ds_data = 0;
@@ -1576,7 +1576,7 @@ ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
 	return;
 
 drop_packet:
-	dev_kfree_skb_any(skb);
+	ieee80211_free_txskb(hw, skb);
 }
 
 static void

drivers/net/wireless/ath/ath5k/mac80211-ops.c

@@ -62,7 +62,7 @@ ath5k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
 	u16 qnum = skb_get_queue_mapping(skb);
 
 	if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) {
-		dev_kfree_skb_any(skb);
+		ieee80211_free_txskb(hw, skb);
 		return;
 	}