fix silly error in removing channels from audio_diskstream

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@3138 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/libs/ardour/audio_diskstream.cc b/libs/ardour/audio_diskstream.cc
index 23832f4806d4a4cc56473fe6a5b08c4280266f70..82ffb9615597f026ad1d2123321b551b7f027fda 100644 (file)
--- a/libs/ardour/audio_diskstream.cc
+++ b/libs/ardour/audio_diskstream.cc
@@ -2243,7 +2243,7 @@ AudioDiskstream::add_channel (uint32_t how_many)
 int
 AudioDiskstream::remove_channel_from (boost::shared_ptr<ChannelList> c, uint32_t how_many)
 {
-       while (--how_many && !c->empty()) {
+       while (how_many-- && !c->empty()) {
                delete c->back();
                c->pop_back();
        }