diff --git a/drivers/net/wireless/rsi/rsi_91x_core.c b/drivers/net/wireless/rsi/rsi_91x_core.c
index ead4d4e04328..3281fc94e107 100644
--- a/drivers/net/wireless/rsi/rsi_91x_core.c
+++ b/drivers/net/wireless/rsi/rsi_91x_core.c
@@ -458,7 +458,7 @@ void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb)
 			tx_params->sta_id = 0;
 		}
 
-		if (rsta) {
+		if (rsta && tid < IEEE80211_NUM_TIDS) {
 			/* Start aggregation if not done for this tid */
 			if (!rsta->start_tx_aggr[tid]) {
 				rsta->start_tx_aggr[tid] = true;