From 7b32da0b11a769be057cdd3e619d582b433bbb0e Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <wallbraker@gmail.com>
Date: Tue, 1 Sep 2009 00:24:53 +0100
Subject: st/xorg: Fix crash in MPH

---
 src/gallium/state_trackers/xorg/xorg_exa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/state_trackers/xorg/xorg_exa.c b/src/gallium/state_trackers/xorg/xorg_exa.c
index 305d75d520..3697d26363 100644
--- a/src/gallium/state_trackers/xorg/xorg_exa.c
+++ b/src/gallium/state_trackers/xorg/xorg_exa.c
@@ -485,7 +485,7 @@ ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 		exa->scrn->tex_surface_destroy(dst_surf);
 		exa->scrn->tex_surface_destroy(priv->src_surf);
 		priv->src_surf = NULL;
-	    } else {
+	    } else if (pPixmap->devPrivate.ptr) {
 		struct pipe_transfer *transfer;
 
 		if (priv->map_count != 0)
-- 
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