Commit 4108c776 authored Jan 02, 2018 by Xiongwei Song Committed by Greg Kroah-Hartman Mar 03, 2018

drm/ttm: check the return value of kzalloc




[ 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>

parent 154770b1

drivers/gpu/drm/ttm/ttm_page_alloc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -818,6 +818,8 @@ int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
		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");