[3.11.y.z extended stable] Patch "drm/qxl: unset a pointer in sync_obj_unref" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    drm/qxl: unset a pointer in sync_obj_unref

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From db4a3b437ef3268d11e7484ae861c189deccab5d Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst at canonical.com>
Date: Tue, 1 Apr 2014 15:15:47 +0200
Subject: drm/qxl: unset a pointer in sync_obj_unref

commit 41ccec352f3c823931a7d9d2a9c7880c14d7415a upstream.

This fixes a BUG_ON(bo->sync_obj != NULL); in ttm_bo_release_list.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/gpu/drm/qxl/qxl_ttm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 1dfd84c..ab69791 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -431,6 +431,7 @@ static int qxl_sync_obj_flush(void *sync_obj)

 static void qxl_sync_obj_unref(void **sync_obj)
 {
+	*sync_obj = NULL;
 }

 static void *qxl_sync_obj_ref(void *sync_obj)
--
1.9.1