static bool ath_tid_has_buffered(struct ath_atx_tid *tid)
{
	return !skb_queue_empty(&tid->buf_q) || !skb_queue_empty(&tid->retry_q);
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.