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libata: implement ata_host_detach()

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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 <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
This commit is contained in:
Tejun Heo 2007-01-20 16:00:26 +09:00 • committed by Jeff Garzik
commit 0529c159db
3 changed files with 21 additions and 6 deletions
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3
drivers/ata/ahci.c
View file

@ -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);

22
drivers/ata/libata-core.c
View file

@ -5991,6 +5991,23 @@ void ata_port_detach(struct ata_port *ap)
scsi_remove_host(ap->scsi_host);
}
/**
* ata_host_detach - Detach all ports of an ATA host
* @host: Host to detach
*
* Detach all ports of @host.
*
* LOCKING:
* Kernel thread context (may sleep).
*/
void ata_host_detach(struct ata_host *host)
{
int i;
for (i = 0; i < host->n_ports; i++)
ata_port_detach(host->ports[i]);
}
/**
* ata_host_remove - PCI layer callback for device removal
* @host: ATA host set that was removed
@ -6006,8 +6023,7 @@ void ata_host_remove(struct ata_host *host)
{
unsigned int i;
for (i = 0; i < host->n_ports; i++)
ata_port_detach(host->ports[i]);
ata_host_detach(host);
free_irq(host->irq, host);
if (host->irq2)
@ -6382,7 +6398,7 @@ EXPORT_SYMBOL_GPL(ata_std_bios_param);
EXPORT_SYMBOL_GPL(ata_std_ports);
EXPORT_SYMBOL_GPL(ata_host_init);
EXPORT_SYMBOL_GPL(ata_device_add);
EXPORT_SYMBOL_GPL(ata_port_detach);
EXPORT_SYMBOL_GPL(ata_host_detach);
EXPORT_SYMBOL_GPL(ata_host_remove);
EXPORT_SYMBOL_GPL(ata_sg_init);
EXPORT_SYMBOL_GPL(ata_sg_init_one);