Merge branch 'gunther-IR-parent-nullptr' into 'master'

InteractionRegion check if parent is nullptr before deref

See merge request !4495

Det/LHCbDet/include/LHCbDet/InteractionRegion.h

@@ -49,7 +49,7 @@ namespace LHCb::Conditions {
     InteractionRegion( const DeVP& vp, const Gaudi::Algorithm* parent = nullptr ) : m_parent{parent} {
       // Set the interaction region from the position of the VeLo
       // resolvers
-      if ( m_parent->msgLevel( MSG::DEBUG ) ) {
+      if ( m_parent && m_parent->msgLevel( MSG::DEBUG ) ) {
         m_parent->debug() << "DetDesc: Using beamSpot from DeVP to set position of InteractionRegion." << endmsg;
       }
       avgPosition = vp.beamSpot();
@@ -60,7 +60,7 @@ namespace LHCb::Conditions {
     /// for use with DetDesc.
     InteractionRegion( const YAML::Node& region, const Gaudi::Algorithm* parent = nullptr ) : m_parent{parent} {
       //
-      if ( m_parent->msgLevel( MSG::DEBUG ) ) {
+      if ( m_parent && m_parent->msgLevel( MSG::DEBUG ) ) {
         m_parent->debug() << "DetDesc: Using InteractionRegion condition." << endmsg;
       }
 
@@ -84,13 +84,13 @@ namespace LHCb::Conditions {
       //
       auto ir = lhcb.interactionRegion();
       if ( ir ) {
-        if ( m_parent->msgLevel( MSG::DEBUG ) ) {
+        if ( m_parent && m_parent->msgLevel( MSG::DEBUG ) ) {
           m_parent->debug() << "DD4HEP: Using InteractionRegion from DeLHCb." << endmsg;
         }
         avgPosition = ir->avgPosition;
         spread      = ir->spread;
       } else {
-        if ( m_parent->msgLevel( MSG::DEBUG ) ) {
+        if ( m_parent && m_parent->msgLevel( MSG::DEBUG ) ) {
           m_parent->debug() << "DD4HEP: Using beamSpot from DeVP to set position of InteractionRegion." << endmsg;
         }
         avgPosition = vp.beamSpot();