rt2x00: Fix queue index handling

When Q_INDEX is increased, the queue->length should be increased,
only when Q_INDEX_DONE is increased should queue_length be descreased.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 52bb57ddc05f..fde64ea3f4ef 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -84,8 +84,12 @@ void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index)
         if (queue->index[index] >= queue->limit)
                 queue->index[index] = 0;
 
-        queue->length--;
-        queue->count += (index == Q_INDEX_DONE);
+        if (index == Q_INDEX) {
+                queue->length++;
+        } else if (index == Q_INDEX_DONE) {
+                queue->length--;
+                queue->count ++;
+        }
 
         spin_unlock(&queue->lock);
 }