diff --git a/drivers/net/wireless/mediatek/mt76/sdio.c b/drivers/net/wireless/mediatek/mt76/sdio.c
index 228bc7d45011c0f65e6dc0e79f81c33681aa1ff7..419723118ded8e3f187aa2887d987b2697b48bb0 100644
--- a/drivers/net/wireless/mediatek/mt76/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/sdio.c
@@ -562,6 +562,10 @@ mt76s_tx_queue_skb_raw(struct mt76_dev *dev, struct mt76_queue *q,
 
 	q->entry[q->head].buf_sz = len;
 	q->entry[q->head].skb = skb;
+
+	/* ensure the entry fully updated before bus access */
+	smp_wmb();
+
 	q->head = (q->head + 1) % q->ndesc;
 	q->queued++;