Am 02.01.2018 um 14:24 schrieb Xiongwei Song:

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

Going to pick that up for the next release.

Thanks, Christian.

---

v2->v3: delete goto expression v1->v2: delete kfree _manager

---

drivers/gpu/drm/ttm/ttm_page_alloc.c | 2 ++ 1 file changed, 2 insertions(+)

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);