static int ide_gd_probe(ide_drive_t *drive)
{
const struct ide_disk_ops *disk_ops = NULL;
struct ide_disk_obj *idkp;
struct gendisk *g;
/* strstr("foo", "") is non-NULL */
if (!strstr("ide-gd", drive->driver_req))
goto failed;
#ifdef CONFIG_IDE_GD_ATA
if (drive->media == ide_disk)
disk_ops = &ide_ata_disk_ops;
#endif
#ifdef CONFIG_IDE_GD_ATAPI
if (drive->media == ide_floppy)
disk_ops = &ide_atapi_disk_ops;
#endif
if (disk_ops == NULL)
goto failed;
if (disk_ops->check(drive, DRV_NAME) == 0) {
printk(KERN_ERR PFX "%s: not supported by this driver\n",
drive->name);
goto failed;
}
idkp = kzalloc(sizeof(*idkp), GFP_KERNEL);
if (!idkp) {
printk(KERN_ERR PFX "%s: can't allocate a disk structure\n",
drive->name);
goto failed;
}
g = alloc_disk_node(IDE_DISK_MINORS, hwif_to_node(drive->hwif));
if (!g)
goto out_free_idkp;
ide_init_disk(g, drive);
kref_init(&idkp->kref);
idkp->drive = drive;
idkp->driver = &ide_gd_driver;
idkp->disk = g;
g->private_data = &idkp->driver;
drive->driver_data = idkp;
drive->debug_mask = debug_mask;
drive->disk_ops = disk_ops;
disk_ops->setup(drive);
set_capacity(g, ide_gd_capacity(drive));
g->minors = IDE_DISK_MINORS;
g->driverfs_dev = &drive->gendev;
g->flags |= GENHD_FL_EXT_DEVT;
if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
g->flags = GENHD_FL_REMOVABLE;
g->fops = &ide_gd_ops;
add_disk(g);
return 0;
out_free_idkp:
kfree(idkp);
failed:
return -ENODEV;
}
static int ide_scsi_probe(ide_drive_t *drive)
{
idescsi_scsi_t *idescsi;
struct Scsi_Host *host;
struct gendisk *g;
static int warned;
int err = -ENOMEM;
if (!warned && drive->media == ide_cdrom) {
printk(KERN_WARNING "ide-scsi is deprecated for cd burning! Use ide-cd and give dev=/dev/hdX as device\n");
warned = 1;
}
if (idescsi_nocd && drive->media == ide_cdrom)
return -ENODEV;
if (!strstr("ide-scsi", drive->driver_req) ||
!drive->present ||
drive->media == ide_disk ||
!(host = scsi_host_alloc(&idescsi_template,sizeof(idescsi_scsi_t))))
return -ENODEV;
drive->scsi = 1;
g = alloc_disk(1 << PARTN_BITS);
if (!g)
goto out_host_put;
ide_init_disk(g, drive);
host->max_id = 1;
if (drive->id->last_lun)
debug_log("%s: id->last_lun=%u\n", drive->name,
drive->id->last_lun);
if ((drive->id->last_lun & 0x7) != 7)
host->max_lun = (drive->id->last_lun & 0x7) + 1;
else
host->max_lun = 1;
drive->driver_data = host;
idescsi = scsihost_to_idescsi(host);
idescsi->drive = drive;
idescsi->driver = &idescsi_driver;
idescsi->host = host;
idescsi->disk = g;
g->private_data = &idescsi->driver;
ide_proc_register_driver(drive, &idescsi_driver);
err = 0;
idescsi_setup(drive, idescsi);
g->fops = &idescsi_ops;
ide_register_region(g);
err = scsi_add_host(host, &drive->gendev);
if (!err) {
scsi_scan_host(host);
return 0;
}
/* fall through on error */
ide_unregister_region(g);
ide_proc_unregister_driver(drive, &idescsi_driver);
put_disk(g);
out_host_put:
drive->scsi = 0;
scsi_host_put(host);
return err;
}
