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-rw-r--r--src/python/m5/SimObject.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/python/m5/SimObject.py b/src/python/m5/SimObject.py
index baeef73d9..cff818c66 100644
--- a/src/python/m5/SimObject.py
+++ b/src/python/m5/SimObject.py
@@ -579,7 +579,8 @@ class MetaSimObject(type):
# object is not an orphan and can provide better error
# messages.
child.set_parent(cls, name)
- cls._children[name] = child
+ if not isNullPointer(child):
+ cls._children[name] = child
def _new_port(cls, name, port):
# each port should be uniquely assigned to one variable
@@ -1226,7 +1227,8 @@ class SimObject(object):
# exercised without specialized testing.
self.clear_child(name)
child.set_parent(self, name)
- self._children[name] = child
+ if not isNullPointer(child):
+ self._children[name] = child
# Take SimObject-valued parameters that haven't been explicitly
# assigned as children and make them children of the object that