Fix crash when multicopter motor system is attached to an empty model (…

…#2653) Signed-off-by: Ian Chen <[email protected]>
gazebosim · Oct 16, 2024 · 990f1c2 · 990f1c2
1 parent 5565815
commit 990f1c2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/systems/multicopter_motor_model/MulticopterMotorModel.cc b/src/systems/multicopter_motor_model/MulticopterMotorModel.cc
@@ -411,7 +411,8 @@ void MulticopterMotorModel::PreUpdate(const UpdateInfo &_info,
 
     const auto parentLinkName = _ecm.Component<components::ParentLinkName>(
         this->dataPtr->jointEntity);
-    this->dataPtr->parentLinkName = parentLinkName->Data();
+    if (parentLinkName)
+      this->dataPtr->parentLinkName = parentLinkName->Data();
   }
 
   if (this->dataPtr->linkEntity == kNullEntity)