From 8da12a00ee653510e1f1a6fecb28dbb36faa8400 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 21 Nov 2012 17:28:46 +0000
Subject: [PATCH] sna: Skip uploading unintialiased pixmap data

References: https://bugs.freedesktop.org/show_bug.cgi?id=47597
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_render.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sna/sna_render.c b/src/sna/sna_render.c
index 47bc19d9..88b23823 100644
--- a/src/sna/sna_render.c
+++ b/src/sna/sna_render.c
@@ -497,6 +497,9 @@ static struct kgem_bo *upload(struct sna *sna,
 
 	priv = sna_pixmap(pixmap);
 	if (priv) {
+		if (priv->cpu_damage == NULL)
+			return NULL;
+
 		/* As we know this box is on the CPU just fixup the shadow */
 		if (priv->mapped) {
 			pixmap->devPrivate.ptr = NULL;