Original commit message from CVS: * ext/alsa/gstalsasink.c: (gst_alsasink_init), (gst_alsasink_close): Set handle to NULL. * gst-libs/gst/audio/gstringbuffer.c: (gst_ring_buffer_open_device), (gst_ring_buffer_close_device), (gst_ring_buffer_acquire), (gst_ring_buffer_release), (gst_ring_buffer_start), (gst_ring_buffer_pause), (gst_ring_buffer_stop), (gst_ring_buffer_commit), (gst_ring_buffer_read): More debug info.