From 6cc5a82206503190c2387266b4ad1b075d9dec62 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Tue, 14 Nov 2006 14:22:43 +0000
Subject: [PATCH] Make sure RENDER_FINISH is called on the zero pixel case. 
 Reported by Haihao Xiang.

---
 src/mesa/swrast/s_readpix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index cbfb7712d82..128ce0afb33 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -554,7 +554,7 @@ _swrast_ReadPixels( GLcontext *ctx,
    /* Do all needed clipping here, so that we can forget about it later */
    if (!_mesa_clip_readpixels(ctx, &x, &y, &width, &height, &clippedPacking)) {
       /* The ReadPixels region is totally outside the window bounds */
-      return;
+      goto end;
    }
 
    if (clippedPacking.BufferObj->Name) {