rt2x00: Add an error message when trying to send on a full queue

We already tell mac80211 to stop the queue when we hit a certain
threshold. Hence, it shouldn't happen at all that a frame gets queued
for tx on a full queue. Add an error message for this case.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 5d8925991ffb..9fc4a1ec4b43 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -482,8 +482,11 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
         struct skb_frame_desc *skbdesc;
         u8 rate_idx, rate_flags;
 
-        if (unlikely(rt2x00queue_full(queue)))
+        if (unlikely(rt2x00queue_full(queue))) {
+                ERROR(queue->rt2x00dev,
+                      "Dropping frame due to full tx queue %d.\n", queue->qid);
                 return -ENOBUFS;
+        }
 
         if (unlikely(test_and_set_bit(ENTRY_OWNER_DEVICE_DATA,
                                       &entry->flags))) {