fix AU configure_io return value (bool not int)

diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 6cb5c2abd9ca14ab797f90482b60a669d6294ea8..bcc8c2c31044e70db8a2a16dc794303ad7855139 100644 (file)
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -1043,7 +1043,7 @@ AUPlugin::configure_io (ChanCount in, ChanCount out)
        if (initialized) {
                //if we are already running with the requested i/o config, bail out here
                if ( (audio_in==input_channels) && (audio_out==output_channels) ) {
-                       return 0;
+                       return true;
                } else {
                        deactivate ();
                }
@@ -1071,13 +1071,13 @@ AUPlugin::configure_io (ChanCount in, ChanCount out)
        streamFormat.mChannelsPerFrame = audio_in;
 
        if (set_input_format (streamFormat) != 0) {
-               return -1;
+               return false;
        }
 
        streamFormat.mChannelsPerFrame = audio_out;
 
        if (set_output_format (streamFormat) != 0) {
-               return -1;
+               return false;
        }
 
        /* reset plugin info to show currently configured state */
@@ -1089,7 +1089,7 @@ AUPlugin::configure_io (ChanCount in, ChanCount out)
                activate ();
        }
 
-       return 0;
+       return true;
 }
 
 ChanCount