This is a note to let you know that I've just added the patch titled
drm/nouveau: hold mutex when calling nouveau_abi16_fini()
to the 4.1-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-nouveau-hold-mutex-when-calling-nouveau_abi16_fini.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ac8c79304280da6ef05c348a9da03ab04898b994 Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@xxxxxxxxxx>
Date: Wed, 15 Jul 2015 17:18:15 +0200
Subject: drm/nouveau: hold mutex when calling nouveau_abi16_fini()
From: Kamil Dudka <kdudka@xxxxxxxxxx>
commit ac8c79304280da6ef05c348a9da03ab04898b994 upstream.
This was the only access to cli->abi16 without holding the mutex.
Signed-off-by: Kamil Dudka <kdudka@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_drm.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -863,8 +863,10 @@ nouveau_drm_preclose(struct drm_device *
pm_runtime_get_sync(dev->dev);
+ mutex_lock(&cli->mutex);
if (cli->abi16)
nouveau_abi16_fini(cli->abi16);
+ mutex_unlock(&cli->mutex);
mutex_lock(&drm->client.mutex);
list_del(&cli->head);
Patches currently in stable-queue which might be from kdudka@xxxxxxxxxx are
queue-4.1/drm-nouveau-drm-nv04-nv40-instmem-protect-access-to-priv-heap-by-mutex.patch
queue-4.1/drm-nouveau-hold-mutex-when-calling-nouveau_abi16_fini.patch
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