From 5582e60966822fd33cf1c48abef95e4dab14235c Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 10 Oct 2006 00:49:27 -0400
Subject: [PATCH] Fixed a bug where a packet was attempted to be sent even
 though another packet was waiting for the bus.

--HG--
extra : convert_revision : 29f7a4f676884330d7b7e93517dea85fc7bbf678
---
 src/mem/tport.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/mem/tport.cc b/src/mem/tport.cc
index cef7a2a5b..66811b820 100644
--- a/src/mem/tport.cc
+++ b/src/mem/tport.cc
@@ -59,6 +59,8 @@ void
 SimpleTimingPort::recvRetry()
 {
     bool result = true;
+
+    assert(transmitList.size());
     while (result && transmitList.size()) {
         result = sendTiming(transmitList.front());
         if (result)
@@ -75,8 +77,11 @@ SimpleTimingPort::SendEvent::process()
 {
     port->outTiming--;
     assert(port->outTiming >= 0);
-    if (port->sendTiming(packet)) {
-        // send successfule
+    if (port->transmitList.size()) {
+        port->transmitList.push_back(packet);
+    }
+    else if (port->sendTiming(packet)) {
+        // send successful
         if (port->transmitList.size() == 0 && port->drainEvent) {
             port->drainEvent->process();
             port->drainEvent = NULL;