do not advance pointer; avoids illegal over-read during mix_buffers_no_gain()

diff --git a/libs/ardour/disk_reader.cc b/libs/ardour/disk_reader.cc
index cc4a0fe2f3ceaacce39550c54beca727f7784e97..4c4b8df51ac80a99fef152088751bdfcaa236d1e 100644 (file)
--- a/libs/ardour/disk_reader.cc
+++ b/libs/ardour/disk_reader.cc
@@ -355,8 +355,7 @@ DiskReader::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame,
                                                memcpy (disk_signal,
                                                        chaninfo->rw_vector.buf[0],
                                                        chaninfo->rw_vector.len[0] * sizeof (Sample));
-                                               disk_signal += chaninfo->rw_vector.len[0];
-                                               memcpy (disk_signal,
+                                               memcpy (disk_signal + chaninfo->rw_vector.len[0],
                                                        chaninfo->rw_vector.buf[1],
                                                        (playback_distance - chaninfo->rw_vector.len[0]) * sizeof (Sample));
                                        }