diff options
Diffstat (limited to 'drivers/pci/hotplug/acpiphp_glue.c')
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index d8748a4a18a7..18c9e54990ee 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -532,13 +532,13 @@ static void check_hotplug_bridge(struct acpiphp_slot *slot, struct pci_dev *dev) } /** - * enable_device - enable, configure a slot + * enable_slot - enable, configure a slot * @slot: slot to be enabled * * This function should be called per *physical slot*, * not per each slot object in ACPI namespace. */ -static int __ref enable_device(struct acpiphp_slot *slot) +static void __ref enable_slot(struct acpiphp_slot *slot) { struct pci_dev *dev; struct pci_bus *bus = slot->bus; @@ -556,6 +556,7 @@ static int __ref enable_device(struct acpiphp_slot *slot) list_for_each_entry(dev, &bus->devices, bus_list) { if (PCI_SLOT(dev->devfn) != slot->device) continue; + if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) { max = pci_scan_bridge(bus, dev, max, pass); @@ -594,8 +595,6 @@ static int __ref enable_device(struct acpiphp_slot *slot) continue; } } - - return 0; } /* return first device in slot, acquiring a reference on it */ @@ -617,16 +616,16 @@ static struct pci_dev *dev_in_slot(struct acpiphp_slot *slot) } /** - * disable_device - disable a slot + * disable_slot - disable a slot * @slot: ACPI PHP slot */ -static int disable_device(struct acpiphp_slot *slot) +static void disable_slot(struct acpiphp_slot *slot) { struct acpiphp_func *func; struct pci_dev *pdev; /* - * enable_device() enumerates all functions in this device via + * enable_slot() enumerates all functions in this device via * pci_scan_slot(), whether they have associated ACPI hotplug * methods (_EJ0, etc.) or not. Therefore, we remove all functions * here. @@ -640,8 +639,6 @@ static int disable_device(struct acpiphp_slot *slot) acpiphp_bus_trim(func_to_handle(func)); slot->flags &= (~SLOT_ENABLED); - - return 0; } @@ -751,9 +748,9 @@ static void acpiphp_check_bridge(struct acpiphp_bridge *bridge) trim_stale_devices(dev); /* configure all functions */ - enable_device(slot); + enable_slot(slot); } else { - disable_device(slot); + disable_slot(slot); } mutex_unlock(&slot->crit_sect); } @@ -860,7 +857,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data) struct acpiphp_slot *slot = func->slot; mutex_lock(&slot->crit_sect); - enable_device(slot); + enable_slot(slot); mutex_unlock(&slot->crit_sect); } break; @@ -1047,16 +1044,13 @@ void acpiphp_remove_slots(struct pci_bus *bus) */ int acpiphp_enable_slot(struct acpiphp_slot *slot) { - int retval = 0; - mutex_lock(&slot->crit_sect); - /* configure all functions */ if (!(slot->flags & SLOT_ENABLED)) - retval = enable_device(slot); + enable_slot(slot); mutex_unlock(&slot->crit_sect); - return retval; + return 0; } /** @@ -1071,9 +1065,7 @@ int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot) mutex_lock(&slot->crit_sect); /* unconfigure all functions */ - retval = disable_device(slot); - if (retval) - goto err_exit; + disable_slot(slot); list_for_each_entry(func, &slot->funcs, sibling) if (func->flags & FUNC_HAS_EJ0) { @@ -1085,7 +1077,6 @@ int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot) break; } - err_exit: mutex_unlock(&slot->crit_sect); return retval; } |