@@ -1334,13 +1334,22 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb)
spin_lock_irqsave(&ring->lock, flags);
B43_WARN_ON(!ring->tx);
- /* Check if the queue was stopped in mac80211,
- * but we got called nevertheless.
- * That would be a mac80211 bug. */
- B43_WARN_ON(ring->stopped);
- if (unlikely(free_slots(ring) < TX_SLOTS_PER_FRAME)) {
- b43warn(dev->wl, "DMA queue overflow\n");
+ if (unlikely(ring->stopped)) {
+ /* We get here only because of a bug in mac80211.
+ * Because of a race, one packet may be queued after
+ * the queue is stopped, thus we got called when we shouldn't.
+ * For now, just refuse the transmit. */
+ if (b43_debug(dev, B43_DBG_DMAVERBOSE))
+ b43err(dev->wl, "Packet after queue stopped\n");
+ err = -ENOSPC;
+ goto out_unlock;
+ }
+
+ if (unlikely(WARN_ON(free_slots(ring) < TX_SLOTS_PER_FRAME))) {
+ /* If we get here, we have a real error with the queue
+ * full, but queues not stopped. */
+ b43err(dev->wl, "DMA queue overflow\n");
err = -ENOSPC;
goto out_unlock;
}