diff options
Diffstat (limited to 'src/core/qchangearbiter.cpp')
-rw-r--r-- | src/core/qchangearbiter.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/core/qchangearbiter.cpp b/src/core/qchangearbiter.cpp index d6c7e05df..2e32d6722 100644 --- a/src/core/qchangearbiter.cpp +++ b/src/core/qchangearbiter.cpp @@ -217,12 +217,15 @@ void QChangeArbiter::registerSceneObserver(QSceneObserverInterface *observer) void QChangeArbiter::unregisterObserver(QObserverInterface *observer, QNodeId nodeId) { QMutexLocker locker(&m_mutex); - if (m_nodeObservations.contains(nodeId)) { - QObserverList &observers = m_nodeObservations[nodeId]; + const auto it = m_nodeObservations.find(nodeId); + if (it != m_nodeObservations.end()) { + QObserverList &observers = it.value(); for (int i = observers.count() - 1; i >= 0; i--) { if (observers[i].second == observer) observers.removeAt(i); } + if (observers.isEmpty()) + m_nodeObservations.erase(it); } } |