diff options
| author | Gwendal Grignou <gwendal@google.com> | 2010-05-25 12:31:38 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-10-21 20:21:03 -0400 |
| commit | d9027470b88631d0956ac37cdadfdeb9cdcf2c99 (patch) | |
| tree | b15273e88431ba734a24965dfc81132ac13bc8bd /drivers/ata/libata-pmp.c | |
| parent | f6f94e2ab1b33f0082ac22d71f66385a60d8157f (diff) | |
[libata] Add ATA transport class
This is a scheleton for libata transport class.
All information is read only, exporting information from libata:
- ata_port class: one per ATA port
- ata_link class: one per ATA port or 15 for SATA Port Multiplier
- ata_device class: up to 2 for PATA link, usually one for SATA.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-pmp.c')
| -rw-r--r-- | drivers/ata/libata-pmp.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c index 224faabd7b7e..505470237d79 100644 --- a/drivers/ata/libata-pmp.c +++ b/drivers/ata/libata-pmp.c @@ -11,6 +11,7 @@ #include <linux/libata.h> #include <linux/slab.h> #include "libata.h" +#include "libata-transport.h" const struct ata_port_operations sata_pmp_port_ops = { .inherits = &sata_port_ops, @@ -312,10 +313,10 @@ static int sata_pmp_configure(struct ata_device *dev, int print_info) return rc; } -static int sata_pmp_init_links(struct ata_port *ap, int nr_ports) +static int sata_pmp_init_links (struct ata_port *ap, int nr_ports) { struct ata_link *pmp_link = ap->pmp_link; - int i; + int i, err; if (!pmp_link) { pmp_link = kzalloc(sizeof(pmp_link[0]) * SATA_PMP_MAX_PORTS, @@ -327,6 +328,13 @@ static int sata_pmp_init_links(struct ata_port *ap, int nr_ports) ata_link_init(ap, &pmp_link[i], i); ap->pmp_link = pmp_link; + + for (i = 0; i < SATA_PMP_MAX_PORTS; i++) { + err = ata_tlink_add(&pmp_link[i]); + if (err) { + goto err_tlink; + } + } } for (i = 0; i < nr_ports; i++) { @@ -339,6 +347,12 @@ static int sata_pmp_init_links(struct ata_port *ap, int nr_ports) } return 0; + err_tlink: + while (--i >= 0) + ata_tlink_delete(&pmp_link[i]); + kfree(pmp_link); + ap->pmp_link = NULL; + return err; } static void sata_pmp_quirks(struct ata_port *ap) |