[PATCH 02/12] drm/ttm: Add a default BO destructor to simplify code

[Tom St Denis]

Signed-off-by: Tom St Denis <tom.stde...@amd.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 8cf89da7030d..4e85c32fea26 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -49,6 +49,12 @@ static struct attribute ttm_bo_count = {
        .mode = S_IRUGO
 };
 
+/* default destructor */
+static void ttm_bo_default_destroy(struct ttm_buffer_object *bo)
+{
+       kfree(bo);
+};
+
 static inline int ttm_mem_type_from_place(const struct ttm_place *place,
                                          uint32_t *mem_type)
 {
@@ -147,10 +153,7 @@ static void ttm_bo_release_list(struct kref *list_kref)
        dma_fence_put(bo->moving);
        reservation_object_fini(&bo->ttm_resv);
        mutex_destroy(&bo->wu_mutex);
-       if (bo->destroy)
-               bo->destroy(bo);
-       else
-               kfree(bo);
+       bo->destroy(bo);
        ttm_mem_global_free(bdev->glob->mem_glob, acc_size);
 }
 
@@ -1176,7 +1179,8 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
                ttm_mem_global_free(mem_glob, acc_size);
                return -EINVAL;
        }
-       bo->destroy = destroy;
+       bo->destroy =
+               (destroy == NULL) ? ttm_bo_default_destroy : destroy;
 
        kref_init(&bo->kref);
        kref_init(&bo->list_kref);
-- 
2.14.3

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