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-rw-r--r--src/python/m5/params.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/python/m5/params.py b/src/python/m5/params.py
index 9394b11e2..081bd342e 100644
--- a/src/python/m5/params.py
+++ b/src/python/m5/params.py
@@ -1004,6 +1004,7 @@ class PortRef(object):
if self.peer and not proxy.isproxy(self.peer):
print "warning: overwriting port", self, \
"value", self.peer, "with", other
+ self.peer.peer = None
self.peer = other
if proxy.isproxy(other):
other.set_param_desc(PortParamDesc())
@@ -1046,6 +1047,8 @@ class PortRef(object):
if self.ccConnected: # already done this
return
peer = self.peer
+ if not self.peer: # nothing to connect to
+ return
connectPorts(self.simobj.getCCObject(), self.name, self.index,
peer.simobj.getCCObject(), peer.name, peer.index)
self.ccConnected = True