[cogl] cogl-vertex-buffer: Fix the size of the array of attribute pointers

[Neil Roberts <nroberts src gnome org>]

commit cdfad9cdbe65ec9fcf92ff70ef8ecdd2732a627e
Author: Neil Roberts <neil linux intel com>
Date:   Wed May 11 13:43:02 2011 +0100

    cogl-vertex-buffer: Fix the size of the array of attribute pointers
    
    In update_primitive_attributes it tries to fill in an array of
    pointers with a NULL terminator. However it was only allocating enough
    space for a pointer for each of the attributes plus one byte instead
    of plus enough bytes for another pointer.
    
    Thomas Wood found this bug with static analysis.

 cogl/cogl-vertex-buffer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/cogl/cogl-vertex-buffer.c b/cogl/cogl-vertex-buffer.c
index 514cb7a..300acf0 100644
--- a/cogl/cogl-vertex-buffer.c
+++ b/cogl/cogl-vertex-buffer.c
@@ -1164,7 +1164,7 @@ update_primitive_attributes (CoglVertexBuffer *buffer)
 
   g_return_if_fail (n_attributes > 0);
 
-  attributes = g_alloca (sizeof (CoglAttribute *) * n_attributes + 1);
+  attributes = g_alloca (sizeof (CoglAttribute *) * (n_attributes + 1));
 
   i = 0;
   for (l = buffer->submitted_vbos; l; l = l->next)