diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c
index 41ece61eb57a..3615a9f35bbb 100644
--- a/net/qrtr/af_qrtr.c
+++ b/net/qrtr/af_qrtr.c
@@ -267,6 +267,9 @@ static int qrtr_tx_wait(struct qrtr_node *node, int dest_node, int dest_port,
 	/* Never set confirm_rx on non-data packets */
 	if (type != QRTR_TYPE_DATA)
 		return 0;
+	printk("dn: %d, dp: %d, %s\n", dest_node, dest_port, type, __func__);
+	if (dest_node < 0)
+		return -EINVAL;
 
 	mutex_lock(&node->qrtr_tx_lock);
 	flow = radix_tree_lookup(&node->qrtr_tx_flow, key);