st/mesa: early exit on error path

Can't rely on asserts having any effect on flowcontrol for release
builds.

diff --git a/src/mesa/state_tracker/st_cb_condrender.c b/src/mesa/state_tracker/st_cb_condrender.c
index 780b40c206502da5303e3dd6f56a834f87b7edbd..e2cd80b40461fbf05951e74ab7ceb371d3a796bb 100644 (file)
--- a/src/mesa/state_tracker/st_cb_condrender.c
+++ b/src/mesa/state_tracker/st_cb_condrender.c
@@ -69,6 +69,7 @@ st_BeginConditionalRender(GLcontext *ctx, struct gl_query_object *q,
       break;
    default:
       assert(0 && "bad mode in st_BeginConditionalRender");
+      return;
    }
 
    pipe->render_condition(pipe, stq->pq, m);