[cogl] cogl-primitive: Fix some broken changes for removal of NULL terminator

[Neil Roberts <nroberts src gnome org>]

commit eb109e6cc09e9024ad5303f02e34bc2de00ad8e7
Author: Neil Roberts <neil linux intel com>
Date:   Mon May 16 16:34:48 2011 +0100

    cogl-primitive: Fix some broken changes for removal of NULL terminator
    
    Commit 3c1e83c7 changed uses of arrays of CoglAttributes to take a
    length instead of being NULL terminated. In cogl_primitive_new it was
    still adding the NULL terminator to the array it passes to
    cogl_primitive_new_with_attributes but then it was also including this
    terminator in the count so it would just segfault when it tries to ref
    the NULL pointer. Also _cogl_primitive_new_with_attributes_unref was
    still trying to detect the NULL terminator so it would also crash.

 cogl/cogl-primitive.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/cogl/cogl-primitive.c b/cogl/cogl-primitive.c
index b47c418..dace7c6 100644
--- a/cogl/cogl-primitive.c
+++ b/cogl/cogl-primitive.c
@@ -87,7 +87,7 @@ _cogl_primitive_new_with_attributes_unref (CoglVerticesMode mode,
                                                   attributes,
                                                   n_attributes);
 
-  for (i = 0; attributes[i]; i++)
+  for (i = 0; i < n_attributes; i++)
     cogl_object_unref (attributes[i]);
 
   return primitive;
@@ -109,8 +109,7 @@ cogl_primitive_new (CoglVerticesMode mode,
     ;
   va_end (ap);
 
-  attributes = g_alloca (sizeof (CoglAttribute *) * (n_attributes + 1));
-  attributes[n_attributes] = NULL;
+  attributes = g_alloca (sizeof (CoglAttribute *) * n_attributes);
 
   va_start (ap, n_vertices);
   for (i = 0; (attribute = va_arg (ap, CoglAttribute *)); i++)
@@ -119,7 +118,7 @@ cogl_primitive_new (CoglVerticesMode mode,
 
   return cogl_primitive_new_with_attributes (mode, n_vertices,
                                              attributes,
-                                             i + 1);
+                                             i);
 }
 
 CoglPrimitive *