init sp->sbuf_cache to avoid possible segfault

diff --git a/src/mesa/pipe/softpipe/sp_context.c b/src/mesa/pipe/softpipe/sp_context.c
index 87eaf6fb54450f01bde75349c1fa87684e42b4f1..10c53a257bd1e9294dbc314ccda0f6f4ce9c705a 100644 (file)
--- a/src/mesa/pipe/softpipe/sp_context.c
+++ b/src/mesa/pipe/softpipe/sp_context.c
@@ -384,6 +384,7 @@ struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
       softpipe->cbuf_cache[i] = sp_create_tile_cache();
    softpipe->zbuf_cache = sp_create_tile_cache();
    softpipe->sbuf_cache_sep = sp_create_tile_cache();
+   softpipe->sbuf_cache = softpipe->sbuf_cache_sep; /* initial value */
 
    return &softpipe->pipe;
 }