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SubjectRe: [PATCH 14/26] media: Convert entity ID allocation to new IDA API
On Thu, Jun 21, 2018 at 02:28:23PM -0700, Matthew Wilcox wrote:
> Removes a call to ida_pre_get().
>
> Signed-off-by: Matthew Wilcox <willy@infradead.org>

Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>

> ---
> drivers/media/media-device.c | 16 +++++-----------
> 1 file changed, 5 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
> index ae59c3177555..d51088bcd735 100644
> --- a/drivers/media/media-device.c
> +++ b/drivers/media/media-device.c
> @@ -575,18 +575,12 @@ int __must_check media_device_register_entity(struct media_device *mdev,
> entity->num_links = 0;
> entity->num_backlinks = 0;
>
> - if (!ida_pre_get(&mdev->entity_internal_idx, GFP_KERNEL))
> - return -ENOMEM;
> -
> - mutex_lock(&mdev->graph_mutex);
> -
> - ret = ida_get_new_above(&mdev->entity_internal_idx, 1,
> - &entity->internal_idx);
> - if (ret < 0) {
> - mutex_unlock(&mdev->graph_mutex);
> + ret = ida_alloc_min(&mdev->entity_internal_idx, 1, GFP_KERNEL);
> + if (ret < 0)
> return ret;
> - }
> + entity->internal_idx = ret;
>
> + mutex_lock(&mdev->graph_mutex);
> mdev->entity_internal_idx_max =
> max(mdev->entity_internal_idx_max, entity->internal_idx);
>
> @@ -632,7 +626,7 @@ static void __media_device_unregister_entity(struct media_entity *entity)
> struct media_interface *intf;
> unsigned int i;
>
> - ida_simple_remove(&mdev->entity_internal_idx, entity->internal_idx);
> + ida_free(&mdev->entity_internal_idx, entity->internal_idx);
>
> /* Remove all interface links pointing to this entity */
> list_for_each_entry(intf, &mdev->interfaces, graph_obj.list) {

--
Sakari Ailus
e-mail: sakari.ailus@iki.fi

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