gallium: fix bad ptr assignment

src/gallium/auxiliary/draw/draw_context.c

@@ -262,7 +262,7 @@ int
 draw_find_vs_output(struct draw_context *draw,
                     uint semantic_name, uint semantic_index)
 {
-   const struct pipe_shader_state *vs = &draw->vertex_shader->state;
+   const struct pipe_shader_state *vs = draw->vertex_shader->state;
    uint i;
    for (i = 0; i < vs->num_outputs; i++) {
       if (vs->output_semantic_name[i] == semantic_name &&