From: José Fonseca <jrfonseca@tungstengraphics.com>
Date: Mon, 24 Nov 2008 04:44:30 +0000 (+0900)
Subject: mesa: Don't call fence_finish with a null fence.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=52e9c9770ac47e9d92df208ec5cfd4e004c45f3d;p=mesa.git

mesa: Don't call fence_finish with a null fence.
---

diff --git a/src/mesa/state_tracker/st_cb_flush.c b/src/mesa/state_tracker/st_cb_flush.c
index d8f9537d2de..cc404679416 100644
--- a/src/mesa/state_tracker/st_cb_flush.c
+++ b/src/mesa/state_tracker/st_cb_flush.c
@@ -93,8 +93,10 @@ void st_finish( struct st_context *st )
 
    st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence);
 
-   st->pipe->winsys->fence_finish(st->pipe->winsys, fence, 0);
-   st->pipe->winsys->fence_reference(st->pipe->winsys, &fence, NULL);
+   if(fence) {
+      st->pipe->winsys->fence_finish(st->pipe->winsys, fence, 0);
+      st->pipe->winsys->fence_reference(st->pipe->winsys, &fence, NULL);
+   }
 }