Fix Playlist refcount when deleting track

Both Disk-reader and Disk-writer use the same playlist.
ARDOUR::Track::use_playlist() sets it for both Disk-IO processors,
so it needs to be released by both on destruction.

1 files changed, 6 insertions, 0 deletions

diff --git a/libs/ardour/disk_io.cc b/libs/ardour/disk_io.cc
index 4c7b77335d..72678304e2 100644
--- a/libs/ardour/disk_io.cc
+++ b/libs/ardour/disk_io.cc
@@ -78,6 +78,12 @@ DiskIOProcessor::~DiskIOProcessor ()
 
 	channels.flush ();
 	delete _midi_buf;
+
+	for (uint32_t n = 0; n < DataType::num_types; ++n) {
+		if (_playlists[n]) {
+			_playlists[n]->release ();
+		}
+	}
 }