UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/ttm: check the return value of register_shrinker 

This fixes the build warning:
"ignoring return value of 'register_shrinker', declared with
attribute warn_unused_result [-Wunused-result]"

Signed-off-by: Roger He <Hongbo.He@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roger He 2018-01-11 12:57:58 +08:00 committed by Alex Deucher
parent c8c99b81c5
commit e2721595e4
2 changed files with 26 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/gpu/drm/ttm/ttm_page_alloc.c
View File

@ -477,12 +477,12 @@ ttm_pool_shrink_count(struct shrinker *shrink, struct shrink_control *sc)
return count;
}
static void ttm_pool_mm_shrink_init(struct ttm_pool_manager *manager)
static int ttm_pool_mm_shrink_init(struct ttm_pool_manager *manager)
{
manager->mm_shrink.count_objects = ttm_pool_shrink_count;
manager->mm_shrink.scan_objects = ttm_pool_shrink_scan;
manager->mm_shrink.seeks = 1;
register_shrinker(&manager->mm_shrink);
return register_shrinker(&manager->mm_shrink);
}
static void ttm_pool_mm_shrink_fini(struct ttm_pool_manager *manager)
@ -1032,15 +1032,18 @@ int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
ret = kobject_init_and_add(&_manager->kobj, &ttm_pool_kobj_type,
&glob->kobj, "pool");
if (unlikely(ret != 0)) {
kobject_put(&_manager->kobj);
_manager = NULL;
return ret;
}
ttm_pool_mm_shrink_init(_manager);
if (unlikely(ret != 0))
goto error;
ret = ttm_pool_mm_shrink_init(_manager);
if (unlikely(ret != 0))
goto error;
return 0;
error:
kobject_put(&_manager->kobj);
_manager = NULL;
return ret;
}
void ttm_page_alloc_fini(void)

24
drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
View File

@ -1182,12 +1182,12 @@ ttm_dma_pool_shrink_count(struct shrinker *shrink, struct shrink_control *sc)
return count;
}
static void ttm_dma_pool_mm_shrink_init(struct ttm_pool_manager *manager)
static int ttm_dma_pool_mm_shrink_init(struct ttm_pool_manager *manager)
{
manager->mm_shrink.count_objects = ttm_dma_pool_shrink_count;
manager->mm_shrink.scan_objects = &ttm_dma_pool_shrink_scan;
manager->mm_shrink.seeks = 1;
register_shrinker(&manager->mm_shrink);
return register_shrinker(&manager->mm_shrink);
}
static void ttm_dma_pool_mm_shrink_fini(struct ttm_pool_manager *manager)
@ -1197,7 +1197,7 @@ static void ttm_dma_pool_mm_shrink_fini(struct ttm_pool_manager *manager)
int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
{
int ret = -ENOMEM;
int ret;
WARN_ON(_manager);
@ -1205,7 +1205,7 @@ int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
_manager = kzalloc(sizeof(*_manager), GFP_KERNEL);
if (!_manager)
goto err;
return -ENOMEM;
mutex_init(&_manager->lock);
INIT_LIST_HEAD(&_manager->pools);
@ -1217,13 +1217,17 @@ int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
/* This takes care of auto-freeing the _manager */
ret = kobject_init_and_add(&_manager->kobj, &ttm_pool_kobj_type,
&glob->kobj, "dma_pool");
if (unlikely(ret != 0)) {
kobject_put(&_manager->kobj);
goto err;
}
ttm_dma_pool_mm_shrink_init(_manager);
if (unlikely(ret != 0))
goto error;
ret = ttm_dma_pool_mm_shrink_init(_manager);
if (unlikely(ret != 0))
goto error;
return 0;
err:
error:
kobject_put(&_manager->kobj);
_manager = NULL;
return ret;
}