ignore send buffers for which there's no return
authorRobin Gareus <robin@gareus.org>
Sun, 16 Oct 2016 22:32:35 +0000 (00:32 +0200)
committerRobin Gareus <robin@gareus.org>
Sun, 16 Oct 2016 22:33:02 +0000 (00:33 +0200)
commit466141229f0402c807902f9fc42446bd4416c600
treec05fd8ffe8d8190dba3431484ffd1dd8fb87a42d
parentd2835bc8024a12a751d8019db3cba4591ed2a33a
ignore send buffers for which there's no return

This fixes an issue with Audio+Midi sends feeding into an audio only return.
libs/ardour/delivery.cc