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authorXiongwei Song <sxwjean@gmail.com>2018-01-02 21:24:55 +0800
committerAlex Deucher <alexander.deucher@amd.com>2018-01-02 14:54:05 -0500
commit19d859a7205bc59ffc38303eb25ae394f61d21dc (patch)
tree78687b322eb35074276572e246a8597b197dda6c /drivers/gpu/drm/ttm
parent807fc072991861ff0cd7ac44267ff1dd76ef316e (diff)
drm/ttm: check the return value of kzalloc
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>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_page_alloc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index b5ba6441489f..5d252fb27a82 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -1007,6 +1007,8 @@ 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", 0);