Patch "drm: Cancel drm_fb_helper_resume_work on unload" has been added to the 4.9-stable tree

Patch "drm: Cancel drm_fb_helper_resume_work on unload" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm: Cancel drm_fb_helper_resume_work on unload

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-cancel-drm_fb_helper_resume_work-on-unload.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 24f76b2c87ed68f79f9f0705b11ccbefaaa0d390 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 7 Feb 2017 12:49:56 +0000
Subject: drm: Cancel drm_fb_helper_resume_work on unload
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Chris Wilson <chris@chris-wilson.co.uk>

commit 24f76b2c87ed68f79f9f0705b11ccbefaaa0d390 upstream.

We can not allow the worker to run after its fbdev, or even the module,
has been removed.

Fixes: cfe63423d9be ("drm/fb-helper: Add drm_fb_helper_set_suspend_unlocked()")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207124956.14954-2-chris@chris-wilson.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/drm_fb_helper.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -848,6 +848,7 @@ void drm_fb_helper_fini(struct drm_fb_he
 	if (!drm_fbdev_emulation)
 		return;
 
+	cancel_work_sync(&fb_helper->resume_work);
 	cancel_work_sync(&fb_helper->dirty_work);
 
 	if (!list_empty(&fb_helper->kernel_fb_list)) {


Patches currently in stable-queue which might be from chris@chris-wilson.co.uk are

queue-4.9/drm-cancel-drm_fb_helper_dirty_work-on-unload.patch
queue-4.9/drm-i915-gvt-disable-access-to-stolen-memory-as-a-guest.patch
queue-4.9/drm-cancel-drm_fb_helper_resume_work-on-unload.patch