shouldn't fuss about not needing to ref at all

Original commit message from CVS:
shouldn't fuss about not needing to ref at all

diff --git a/gst/gstbuffer.c b/gst/gstbuffer.c
index 841a1fc..5f49f1c 100644 (file)
--- a/gst/gstbuffer.c
+++ b/gst/gstbuffer.c
@@ -347,6 +347,7 @@ void
 gst_buffer_ref_by_count (GstBuffer *buffer, gint count)
 {
   g_return_if_fail (buffer != NULL);
+  if (count == 0) return; /* no error when no need to ref */
   g_return_if_fail (count > 0);
 
 #ifdef HAVE_ATOMIC_H