libata: implement ata_host_detach()

Implement ata_host_detach() which calls ata_port_detach() for each
port in the host and export it.  ata_port_detach() is now internal and
thus un-exported.  ata_host_detach() will be used as the 'deregister
from libata layer' function after devres conversion.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 03b7a0051887..649dfa57e51c 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1792,8 +1792,7 @@ static void ahci_remove_one (struct pci_dev *pdev)
         unsigned int i;
         int have_msi;
 
-        for (i = 0; i < host->n_ports; i++)
-                ata_port_detach(host->ports[i]);
+        ata_host_detach(host);
 
         have_msi = hpriv->flags & AHCI_FLAG_MSI;
         free_irq(host->irq, host);