[Intel-gfx] [PATCH] accessing a pixmap if prepare_access fails is verboten.

[Owain Ainsworth]

>From 4f0b889dc7dc07d941d60f7be302366ec35566cb Mon Sep 17 00:00:00 2001
From: Owain G. Ainsworth <oga at openbsd.org>
Date: Thu, 16 Jul 2009 20:31:46 +0100
Subject: [PATCH] accessing a pixmap if prepare_access fails is verboten.

Don't do it, treat this the same as every other prepare access call in uxa.
---
 uxa/uxa.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/uxa/uxa.c b/uxa/uxa.c
index 1f2d75b..22c7c40 100644
--- a/uxa/uxa.c
+++ b/uxa/uxa.c
@@ -244,9 +244,10 @@ uxa_validate_gc (GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
 	/* We can't inline stipple handling like we do for GCTile because it sets
 	 * fbgc privates.
 	 */
-	uxa_prepare_access(&pGC->stipple->drawable, UXA_ACCESS_RW);
-	fbValidateGC (pGC, changes, pDrawable);
-	uxa_finish_access(&pGC->stipple->drawable);
+	if (uxa_prepare_access(&pGC->stipple->drawable, UXA_ACCESS_RW)) {
+	    fbValidateGC (pGC, changes, pDrawable);
+	    uxa_finish_access(&pGC->stipple->drawable);
+	}
     } else {
 	fbValidateGC (pGC, changes, pDrawable);
     }
-- 
1.6.3.3