drm/ttm: remove NULL checks when calling ttm_tt_destroy

The function is a no-op with a NULL pointer.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 4216b3162a8d..43a29555032e 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -147,8 +147,7 @@ static void ttm_bo_release_list(struct kref *list_kref)
         BUG_ON(!list_empty(&bo->lru));
         BUG_ON(!list_empty(&bo->ddestroy));
 
-        if (bo->ttm)
-                ttm_tt_destroy(bo->ttm);
+        ttm_tt_destroy(bo->ttm);
         atomic_dec(&bo->glob->bo_count);
         if (bo->resv == &bo->ttm_resv)
                 reservation_object_fini(&bo->ttm_resv);
@@ -396,7 +395,7 @@ moved:
 
 out_err:
         new_man = &bdev->man[bo->mem.mem_type];
-        if ((new_man->flags & TTM_MEMTYPE_FLAG_FIXED) && bo->ttm) {
+        if (new_man->flags & TTM_MEMTYPE_FLAG_FIXED) {
                 ttm_tt_destroy(bo->ttm);
                 bo->ttm = NULL;
         }
@@ -417,10 +416,8 @@ static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo)
         if (bo->bdev->driver->move_notify)
                 bo->bdev->driver->move_notify(bo, NULL);
 
-        if (bo->ttm) {
-                ttm_tt_destroy(bo->ttm);
-                bo->ttm = NULL;
-        }
+        ttm_tt_destroy(bo->ttm);
+        bo->ttm = NULL;
         ttm_bo_mem_put(bo, &bo->mem);
 
         ww_mutex_unlock (&bo->resv->lock);