This is a note to let you know that I've just added the patch titled
drm/ttm: check the return value of kzalloc
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: drm-ttm-check-the-return-value-of-kzalloc.patch and it can be found in the queue-4.4 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 foo@baz Wed Feb 28 16:19:30 CET 2018
From: Xiongwei Song sxwjean@gmail.com Date: Tue, 2 Jan 2018 21:24:55 +0800 Subject: drm/ttm: check the return value of kzalloc
From: Xiongwei Song sxwjean@gmail.com
[ Upstream commit 19d859a7205bc59ffc38303eb25ae394f61d21dc ]
In the function ttm_page_alloc_init, kzalloc call is made for variable _manager, we need to check its return value, it may return NULL.
Signed-off-by: Xiongwei Song sxwjean@gmail.com Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/ttm/ttm_page_alloc.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -818,6 +818,8 @@ int ttm_page_alloc_init(struct ttm_mem_g pr_info("Initializing pool allocator\n");
_manager = kzalloc(sizeof(*_manager), GFP_KERNEL); + if (!_manager) + return -ENOMEM;
ttm_page_pool_init_locked(&_manager->wc_pool, GFP_HIGHUSER, "wc");
Patches currently in stable-queue which might be from sxwjean@gmail.com are
queue-4.4/drm-ttm-check-the-return-value-of-kzalloc.patch