softpipe: add failure paths for context creation

diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index fe9cd83..a48e546 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -88,7 +88,8 @@ static void softpipe_destroy( struct pipe_context *pipe )
    struct pipe_winsys *ws = pipe->winsys;
    uint i;
 
-   draw_destroy( softpipe->draw );
+   if (softpipe->draw)
+      draw_destroy( softpipe->draw );
 
    softpipe->quad.polygon_stipple->destroy( softpipe->quad.polygon_stipple );
    softpipe->quad.earlyz->destroy( softpipe->quad.earlyz );
@@ -216,8 +217,12 @@ softpipe_create( struct pipe_screen *screen,
     * Create drawing context and plug our rendering stage into it.
     */
    softpipe->draw = draw_create();
-   assert(softpipe->draw);
+   if (!softpipe->draw) 
+      goto fail;
+
    softpipe->setup = sp_draw_render_stage(softpipe);
+   if (!softpipe->setup)
+      goto fail;
 
    if (GETENV( "SP_NO_RAST" ) != NULL)
       softpipe->no_rast = TRUE;
@@ -241,4 +246,8 @@ softpipe_create( struct pipe_screen *screen,
    sp_init_surface_functions(softpipe);
 
    return &softpipe->pipe;
+
+ fail:
+   softpipe_destroy(&softpipe->pipe);
+   return NULL;
 }