libata-link: update hotplug to handle PMP links

Update hotplug to handle PMP links.  When PMP is attached, the PMP
number corresponds to C of SCSI H:C:I:L.  While at it, change argument
to ata_find_dev() to @devno from @id to avoid confusion with SCSI
device ID.

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

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index af9c0ab600dc..14f299278f1b 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6604,6 +6604,7 @@ int ata_host_activate(struct ata_host *host, int irq,
 void ata_port_detach(struct ata_port *ap)
 {
         unsigned long flags;
+        struct ata_link *link;
         struct ata_device *dev;
 
         if (!ap->ops->error_handler)
@@ -6621,8 +6622,10 @@ void ata_port_detach(struct ata_port *ap)
          */
         spin_lock_irqsave(ap->lock, flags);
 
-        ata_link_for_each_dev(dev, &ap->link)
-                ata_dev_disable(dev);
+        ata_port_for_each_link(link, ap) {
+                ata_link_for_each_dev(dev, link)
+                        ata_dev_disable(dev);
+        }
 
         spin_unlock_irqrestore(ap->lock, flags);