diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 93f0d387688a..bcdd4c2a8b67 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -522,6 +522,11 @@ int iwl_pcie_txq_alloc(struct iwl_trans *trans, struct iwl_txq *txq,
 				goto error;
 		}
 
+	if (WARN(!tfd_sz, "tfd_sz is 0 - tfh:%d, slots:%d, tfd_size:%d, maxq:%d\n",
+		 trans->cfg->use_tfh, slots_num, trans_pcie->tfd_size,
+		 trans->cfg->base_params->max_tfd_queue_size))
+		goto error;
+
 	/* Circular buffer of transmit frame descriptors (TFDs),
 	 * shared with device */
 	txq->tfds = dma_alloc_coherent(trans->dev, tfd_sz,
@@ -533,6 +538,10 @@ int iwl_pcie_txq_alloc(struct iwl_trans *trans, struct iwl_txq *txq,
 
 	tb0_buf_sz = sizeof(*txq->first_tb_bufs) * slots_num;
 
+	if (WARN(!tb0_buf_sz, "tb0_buf_sz is 0 - slots:%d, sizeof:%d\n",
+		 slots_num, sizeof(*txq->first_tb_bufs)))
+		goto error;
+
 	txq->first_tb_bufs = dma_alloc_coherent(trans->dev, tb0_buf_sz,
 					      &txq->first_tb_dma,
 					      GFP_KERNEL);