From: Vinson Lee <vlee@vmware.com>
Date: Sun, 29 Nov 2009 04:22:31 +0000 (-0500)
Subject: dri: Fix potential null pointer dereference in driBindContext.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=919898e92fa23ff71a59d86a46ff0886a6f34e4d;p=mesa.git

dri: Fix potential null pointer dereference in driBindContext.
---

diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index 439f66a7b88..da81ec9de51 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -167,11 +167,12 @@ static int driBindContext(__DRIcontext *pcp,
 			  __DRIdrawable *pdp,
 			  __DRIdrawable *prp)
 {
-    __DRIscreenPrivate *psp = pcp->driScreenPriv;
+    __DRIscreenPrivate *psp;
 
     /* Bind the drawable to the context */
 
     if (pcp) {
+	psp = pcp->driScreenPriv;
 	pcp->driDrawablePriv = pdp;
 	pcp->driReadablePriv = prp;
 	if (pdp) {