dri2: check if context is valid before flushing the pipe

diff --git a/src/gallium/state_trackers/dri/drm/dri2.c b/src/gallium/state_trackers/dri/drm/dri2.c
index 908a735..53638da 100644 (file)
--- a/src/gallium/state_trackers/dri/drm/dri2.c
+++ b/src/gallium/state_trackers/dri/drm/dri2.c
@@ -49,7 +49,8 @@ dri2_flush_drawable(__DRIdrawable *draw)
    struct dri_drawable *drawable = dri_drawable(draw);
    struct dri_context *ctx = dri_get_current(draw->driScreenPriv);
 
-   ctx->st->flush(ctx->st, 0, NULL);
+   if (ctx)
+      ctx->st->flush(ctx->st, 0, NULL);
 }
 
 static void