[PATCH 05/27] drm/etnaviv: change return type of etnaviv_gem_obj_add to void

[Christian Gmeiner]

2017-12-01 11:36 GMT+01:00 Lucas Stach <l.stach at pengutronix.de>:
> This function never fails, as it does nothing more than adding the GEM
> object to the global device list. Making this explicit through the void
> return type allows to drop some unnecessary error handling.
>
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>

Reviewed-by: Christian Gmeiner <christian.gmeiner at gmail.com>

> ---
>  drivers/gpu/drm/etnaviv/etnaviv_gem.c       | 16 ++++------------
>  drivers/gpu/drm/etnaviv/etnaviv_gem.h       |  2 +-
>  drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c |  4 +---
>  3 files changed, 6 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> index f75105b7e1a4..a52220eeee45 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> @@ -586,7 +586,7 @@ void etnaviv_gem_free_object(struct drm_gem_object *obj)
>         kfree(etnaviv_obj);
>  }
>
> -int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
> +void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
>  {
>         struct etnaviv_drm_private *priv = dev->dev_private;
>         struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
> @@ -594,8 +594,6 @@ int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
>         mutex_lock(&priv->gem_lock);
>         list_add_tail(&etnaviv_obj->gem_node, &priv->gem_list);
>         mutex_unlock(&priv->gem_lock);
> -
> -       return 0;
>  }
>
>  static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
> @@ -678,11 +676,7 @@ int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
>         if (ret)
>                 goto fail;
>
> -       ret = etnaviv_gem_obj_add(dev, obj);
> -       if (ret < 0) {
> -               drm_gem_object_put_unlocked(obj);
> -               return ret;
> -       }
> +       etnaviv_gem_obj_add(dev, obj);
>
>         ret = drm_gem_handle_create(file, obj, handle);
>
> @@ -895,12 +889,10 @@ int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
>         etnaviv_obj->userptr.ro = !(flags & ETNA_USERPTR_WRITE);
>         get_task_struct(current);
>
> -       ret = etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
> -       if (ret)
> -               goto unreference;
> +       etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
>
>         ret = drm_gem_handle_create(file, &etnaviv_obj->base, handle);
> -unreference:
> +
>         /* drop reference from allocate - handle holds it now */
>         drm_gem_object_put_unlocked(&etnaviv_obj->base);
>         return ret;
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
> index e437fba1209d..00bd9c851a02 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
> @@ -117,7 +117,7 @@ int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
>  int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
>         struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
>         struct etnaviv_gem_object **res);
> -int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
> +void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
>  struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
>  void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> index ea87bf87b187..5704305d41e6 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> @@ -142,9 +142,7 @@ struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
>         if (ret)
>                 goto fail;
>
> -       ret = etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
> -       if (ret)
> -               goto fail;
> +       etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
>
>         return &etnaviv_obj->base;
>
> --
> 2.11.0
>
> _______________________________________________
> etnaviv mailing list
> etnaviv at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/etnaviv



-- 
greets
--
Christian Gmeiner, MSc

https://christian-gmeiner.info