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authorVinson Lee <[email protected]>2009-11-24 00:57:55 -0500
committerVinson Lee <[email protected]>2009-12-06 01:00:20 -0800
commitf622b649fb0c55b1640997f9d32ea327743519a1 (patch)
tree41e90c7e6523ca4f7213ed14d84ddb2e0322ed9d /src/mesa/drivers
parent76b3523d752968bc552d4350a39b9b9b1a023cf0 (diff)
dri: Fix potential null pointer deference in dri_put_drawable.
(cherry picked from commit 364070b1f2b08d43fb205ec198894a35bec6b2f3)
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/common/dri_util.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index e48e10d7c06..439f66a7b88 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -498,11 +498,11 @@ static void dri_put_drawable(__DRIdrawable *pdp)
{
__DRIscreenPrivate *psp;
- pdp->refcount--;
- if (pdp->refcount)
- return;
-
if (pdp) {
+ pdp->refcount--;
+ if (pdp->refcount)
+ return;
+
psp = pdp->driScreenPriv;
(*psp->DriverAPI.DestroyBuffer)(pdp);
if (pdp->pClipRects) {