diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index c4501a9f051cb3adb992b2a3e3a9d61292ecce16..78b369286579dd954f98243a24e948db2a4f3c2b 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -704,6 +704,10 @@ void ath6kl_tx_complete(struct htc_target *target,
 					  list);
 		list_del(&packet->list);
 
+		if (WARN_ON_ONCE(packet->endpoint == ENDPOINT_UNUSED ||
+				 packet->endpoint >= ENDPOINT_MAX))
+			continue;
+
 		ath6kl_cookie = (struct ath6kl_cookie *)packet->pkt_cntxt;
 		if (WARN_ON_ONCE(!ath6kl_cookie))
 			continue;