On Thu, May 10, 2018 at 11:05:16AM +0800, Jason Yan wrote: > Commit 2623c7a5f2 ("libata: add refcounting to ata_host") v4.17+ > introduced refcounting to ata_host and will increase or decrease the > refcount when adding or deleting transport ATA port. libata side looks good to me. Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun