Detected leaked API during debugging

The following snipped is from ags_audio.c namely in ags_audio_real_set_pads() and isn't fully populated. May be a macro will be used to do so.

if(alloc_recycling){
 channel->first_recycling =
 channel->last_recycling = ags_recycling_new(audio->devout);

 if(link_recycling){
   recycling->next = channel->first_recycling;
   recycling->next->prev = recycling;
   recycling = recycling->next;
 }

 channel->first_recycling->channel = (GObject *) channel;

//      ags_garbage_collector_add(AGS_DEVOUT(audio->devout)->garbage_collector, channel->first_recycling);

 }else if(set_sync_link){
   channel->first_recycling = input->first_recycling;
   channel->last_recycling = input->last_recycling;

   input = input->next;
 }else if(set_async_link){
   channel->first_recycling = input->first_recycling;
   channel->last_recycling = input_pad_last->last_recycling;

   input = input->next;
   input_pad_last = input_pad_last->next;
}