diff options
Diffstat (limited to 'drivers/ide/ide-probe.c')
-rw-r--r-- | drivers/ide/ide-probe.c | 55 |
1 files changed, 43 insertions, 12 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 0ccbb4459fb9..ee8e3e7cad51 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -649,7 +649,8 @@ static int ide_register_port(ide_hwif_t *hwif) /* register with global device tree */ dev_set_name(&hwif->gendev, hwif->name); hwif->gendev.driver_data = hwif; - hwif->gendev.parent = hwif->dev; + if (hwif->gendev.parent == NULL) + hwif->gendev.parent = hwif->dev; hwif->gendev.release = hwif_release_dev; ret = device_register(&hwif->gendev); @@ -796,7 +797,7 @@ static int ide_probe_port(ide_hwif_t *hwif) if (irqd) disable_irq(hwif->irq); - local_irq_save(flags); + local_save_flags(flags); local_irq_enable_in_hardirq(); if (ide_port_wait_ready(hwif) == -EBUSY) @@ -949,6 +950,7 @@ static int ide_port_setup_devices(ide_hwif_t *hwif) static int init_irq (ide_hwif_t *hwif) { struct ide_io_ports *io_ports = &hwif->io_ports; + irq_handler_t irq_handler; int sa = 0; mutex_lock(&ide_cfg_mtx); @@ -958,6 +960,10 @@ static int init_irq (ide_hwif_t *hwif) hwif->timer.function = &ide_timer_expiry; hwif->timer.data = (unsigned long)hwif; + irq_handler = hwif->host->irq_handler; + if (irq_handler == NULL) + irq_handler = ide_intr; + #if defined(__mc68000__) sa = IRQF_SHARED; #endif /* __mc68000__ */ @@ -968,7 +974,7 @@ static int init_irq (ide_hwif_t *hwif) if (io_ports->ctl_addr) hwif->tp_ops->set_irq(hwif, 1); - if (request_irq(hwif->irq, &ide_intr, sa, hwif->name, hwif)) + if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif)) goto out_up; if (!hwif->rqsize) { @@ -1466,6 +1472,30 @@ struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws) } EXPORT_SYMBOL_GPL(ide_host_alloc); +static void ide_port_free(ide_hwif_t *hwif) +{ + ide_port_free_devices(hwif); + ide_free_port_slot(hwif->index); + kfree(hwif); +} + +static void ide_disable_port(ide_hwif_t *hwif) +{ + struct ide_host *host = hwif->host; + int i; + + printk(KERN_INFO "%s: disabling port\n", hwif->name); + + for (i = 0; i < MAX_HOST_PORTS; i++) { + if (host->ports[i] == hwif) { + host->ports[i] = NULL; + host->n_ports--; + } + } + + ide_port_free(hwif); +} + int ide_host_register(struct ide_host *host, const struct ide_port_info *d, hw_regs_t **hws) { @@ -1506,8 +1536,12 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, hwif->present = 1; if (hwif->chipset != ide_4drives || !hwif->mate || - !hwif->mate->present) - ide_register_port(hwif); + !hwif->mate->present) { + if (ide_register_port(hwif)) { + ide_disable_port(hwif); + continue; + } + } if (hwif->present) ide_port_tune_devices(hwif); @@ -1520,7 +1554,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, if (hwif_init(hwif) == 0) { printk(KERN_INFO "%s: failed to initialize IDE " "interface\n", hwif->name); - hwif->present = 0; + device_unregister(&hwif->gendev); + ide_disable_port(hwif); continue; } @@ -1659,12 +1694,8 @@ void ide_host_free(struct ide_host *host) int i; ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - ide_port_free_devices(hwif); - ide_free_port_slot(hwif->index); - kfree(hwif); + if (hwif) + ide_port_free(hwif); } kfree(host); |