diff --git a/drivers/net/wireless/ath/ath12k/dp_tx.c b/drivers/net/wireless/ath/ath12k/dp_tx.c
index 8874c815d7fa..16d889fc2043 100644
--- a/drivers/net/wireless/ath/ath12k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_tx.c
@@ -330,8 +330,11 @@ int ath12k_dp_tx(struct ath12k *ar, struct ath12k_vif *arvif,
 
 fail_unmap_dma:
 	dma_unmap_single(ab->dev, ti.paddr, ti.data_len, DMA_TO_DEVICE);
-	dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
-			 sizeof(struct hal_tx_msdu_ext_desc), DMA_TO_DEVICE);
+
+	if (skb_cb->paddr_ext_desc)
+		dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
+				 sizeof(struct hal_tx_msdu_ext_desc),
+				 DMA_TO_DEVICE);
 
 fail_remove_tx_buf:
 	ath12k_dp_tx_release_txbuf(dp, tx_desc, pool_id);