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Date: Sat, 8 Aug 2015 15:09:58 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Kamil Dudka <kdudka@...hat.com>
Subject: [PATCH 4.1 120/123] drm/nouveau: hold mutex when calling nouveau_abi16_fini()
4.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kamil Dudka <kdudka@...hat.com>
commit ac8c79304280da6ef05c348a9da03ab04898b994 upstream.
This was the only access to cli->abi16 without holding the mutex.
Signed-off-by: Kamil Dudka <kdudka@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
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);
--
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