From: Ivo van Doorn <ivdoorn@gmail.com>
Date: Sun, 3 Feb 2008 14:55:21 +0000 (+0100)
Subject: rt2x00: Fix queue index handling
X-Git-Tag: upstream/snapshot3+hdmi~26303^2~530^2~118
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=10b6b80145cc93887dd8aab99bfffa375e9add31;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

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>
---

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 52bb57d..fde64ea 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);
 }