release shared route pointer kept by InternalSend when dropping refs.

fixes "SessionHandleRef exists across session deletion"
when using AuxSends

1 files changed, 7 insertions, 0 deletions

diff --git a/libs/ardour/internal_send.cc b/libs/ardour/internal_send.cc
index e5c7232f48..33b299dfee 100644
--- a/libs/ardour/internal_send.cc
+++ b/libs/ardour/internal_send.cc
@@ -58,6 +58,7 @@ InternalSend::InternalSend (Session& s,
 
 	init_gain ();
 
+	_send_from->DropReferences.connect_same_thread (source_connection, boost::bind (&InternalSend::send_from_going_away, this));
 	CycleStart.connect_same_thread (*this, boost::bind (&InternalSend::cycle_start, this, _1));
 }
 
@@ -118,6 +119,12 @@ InternalSend::target_io_changed ()
 }
 
 void
+InternalSend::send_from_going_away ()
+{
+	_send_from.reset();
+}
+
+void
 InternalSend::send_to_going_away ()
 {
         target_connections.drop_connections ();