diff options
Diffstat (limited to 'drivers/pci/hotplug/rpaphp_core.c')
| -rw-r--r-- | drivers/pci/hotplug/rpaphp_core.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c index acf17645fd8..341fdd59090 100644 --- a/drivers/pci/hotplug/rpaphp_core.c +++ b/drivers/pci/hotplug/rpaphp_core.c @@ -393,22 +393,40 @@ static void __exit rpaphp_exit(void) cleanup_slots(); } -static int enable_slot(struct hotplug_slot *hotplug_slot) +static int __enable_slot(struct slot *slot) { - int retval = 0; - struct slot *slot = (struct slot *)hotplug_slot->private; + int state; + int retval; - if (slot->state == CONFIGURED) { - dbg("%s: %s is already enabled\n", __FUNCTION__, slot->name); - goto exit; + if (slot->state == CONFIGURED) + return 0; + + retval = rpaphp_get_sensor_state(slot, &state); + if (retval) + return retval; + + if (state == PRESENT) { + pcibios_add_pci_devices(slot->bus); + slot->state = CONFIGURED; + } else if (state == EMPTY) { + slot->state = EMPTY; + } else { + err("%s: slot[%s] is in invalid state\n", __FUNCTION__, slot->name); + slot->state = NOT_VALID; + return -EINVAL; } + return 0; +} + +static int enable_slot(struct hotplug_slot *hotplug_slot) +{ + int retval; + struct slot *slot = (struct slot *)hotplug_slot->private; - dbg("ENABLING SLOT %s\n", slot->name); down(&rpaphp_sem); - retval = rpaphp_enable_pci_slot(slot); + retval = __enable_slot(slot); up(&rpaphp_sem); -exit: - dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval); + return retval; } |