From 8604affde9d4f52f04342d6a37c77d95fa167e7a Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Thu, 26 May 2005 14:55:34 +0200 Subject: [PATCH] convert IDE device drivers to driver-model * add ide_bus_match() and export ide_bus_type * split ide_remove_driver_from_hwgroup() out of ide_unregister() * move device cleanup from ide_unregister() to drive_release_dev() * convert ide_driver_t->name to driver->name * convert ide_driver_t->{attach,cleanup} to driver->{probe,remove} * remove ide_driver_t->busy as ide_bus_type->subsys.rwsem protects against concurrent ->{probe,remove} calls * make ide_{un}register_driver() void as it cannot fail now * use driver_{un}register() directly, remove ide_{un}register_driver() * use device_register() instead of ata_attach(), remove ata_attach() * add proc_print_driver() and ide_drivers_show(), remove ide_drivers_op * fix ide_replace_subdriver() and move it to ide-proc.c * remove ide_driver_t->drives, ide_drives and drives_lock * remove ide_driver_t->drivers, drivers and drivers_lock * remove ide_drive_t->driver and DRIVER() macro Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 47 ++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 44 insertions(+), 3 deletions(-) (limited to 'drivers/ide/ide-probe.c') diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 554473a95cf..53b84a84f6c 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include #include @@ -918,7 +919,7 @@ int probe_hwif_init_with_fixup(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif) want them on default or a new "empty" class for hotplug reprobing ? */ if (drive->present) { - ata_attach(drive); + device_register(&drive->gendev); } } } @@ -1279,10 +1280,51 @@ void ide_init_disk(struct gendisk *disk, ide_drive_t *drive) EXPORT_SYMBOL_GPL(ide_init_disk); +static void ide_remove_drive_from_hwgroup(ide_drive_t *drive) +{ + ide_hwgroup_t *hwgroup = drive->hwif->hwgroup; + + if (drive == drive->next) { + /* special case: last drive from hwgroup. */ + BUG_ON(hwgroup->drive != drive); + hwgroup->drive = NULL; + } else { + ide_drive_t *walk; + + walk = hwgroup->drive; + while (walk->next != drive) + walk = walk->next; + walk->next = drive->next; + if (hwgroup->drive == drive) { + hwgroup->drive = drive->next; + hwgroup->hwif = hwgroup->drive->hwif; + } + } + BUG_ON(hwgroup->drive == drive); +} + static void drive_release_dev (struct device *dev) { ide_drive_t *drive = container_of(dev, ide_drive_t, gendev); + spin_lock_irq(&ide_lock); + if (drive->devfs_name[0] != '\0') { + devfs_remove(drive->devfs_name); + drive->devfs_name[0] = '\0'; + } + ide_remove_drive_from_hwgroup(drive); + if (drive->id != NULL) { + kfree(drive->id); + drive->id = NULL; + } + drive->present = 0; + /* Messed up locking ... */ + spin_unlock_irq(&ide_lock); + blk_cleanup_queue(drive->queue); + spin_lock_irq(&ide_lock); + drive->queue = NULL; + spin_unlock_irq(&ide_lock); + up(&drive->gendev_rel_sem); } @@ -1306,7 +1348,6 @@ static void init_gendisk (ide_hwif_t *hwif) drive->gendev.driver_data = drive; drive->gendev.release = drive_release_dev; if (drive->present) { - device_register(&drive->gendev); sprintf(drive->devfs_name, "ide/host%d/bus%d/target%d/lun%d", (hwif->channel && hwif->mate) ? hwif->mate->index : hwif->index, @@ -1412,7 +1453,7 @@ int ideprobe_init (void) hwif->chipset = ide_generic; for (unit = 0; unit < MAX_DRIVES; ++unit) if (hwif->drives[unit].present) - ata_attach(&hwif->drives[unit]); + device_register(&hwif->drives[unit].gendev); } } return 0; -- cgit v1.2.3