gallium: initialized draw element buffer to NULL

diff --git a/src/mesa/pipe/draw/draw_context.c b/src/mesa/pipe/draw/draw_context.c
index c7ad4c3..d438c0b 100644 (file)
--- a/src/mesa/pipe/draw/draw_context.c
+++ b/src/mesa/pipe/draw/draw_context.c
@@ -85,6 +85,7 @@ struct draw_context *draw_create( void )
    draw->prim = ~0; /* != any of PIPE_PRIM_x */
 
    draw_vertex_cache_invalidate( draw );
+   draw_set_mapped_element_buffer( draw, 0, NULL );
 
    return draw;
 }