From: Michel Dänzer <michel@tungstengraphics.com>
Date: Tue, 10 Jul 2007 08:49:28 +0000 (+0200)
Subject: Clear pointers to freed cliprects.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a903749b246fce26038c66d06fe7eb77daf815ab;p=mesa.git

Clear pointers to freed cliprects.

Not doing this could lead to double frees under rare circumstances.
---

diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index dd52f7e9151..c30e66f1722 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -428,10 +428,12 @@ __driUtilUpdateDrawableInfo(__DRIdrawablePrivate *pdp)
 
     if (pdp->pClipRects) {
 	_mesa_free(pdp->pClipRects); 
+	pdp->pClipRects = NULL;
     }
 
     if (pdp->pBackClipRects) {
 	_mesa_free(pdp->pBackClipRects); 
+	pdp->pBackClipRects = NULL;
     }
 
     DRM_SPINUNLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);