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ACPI: remove unused return values from Bus Check & Device Check handling 

Remove return values from acpi_bus_check_device() and acpi_bus_check_scope()
since nobody looks at them.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2009-05-22 11:43:51 -06:00 committed by Len Brown
parent aa8a149c0c
commit cdd5b8ca12
1 changed files with 11 additions and 21 deletions
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32
drivers/acpi/bus.c
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@ -450,14 +450,13 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
Notification Handling
-------------------------------------------------------------------------- */
static int acpi_bus_check_device(struct acpi_device *device)
static void acpi_bus_check_device(struct acpi_device *device)
{
acpi_status status = 0;
acpi_status status;
struct acpi_device_status old_status;
if (!device)
return -EINVAL;
return;
old_status = device->status;
@ -467,15 +466,15 @@ static int acpi_bus_check_device(struct acpi_device *device)
*/
if (device->parent && !device->parent->status.present) {
device->status = device->parent->status;
return 0;
return;
}
status = acpi_bus_get_status(device);
if (ACPI_FAILURE(status))
return -ENODEV;
return;
if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))
return 0;
return;
/*
* Device Insertion/Removal
@ -487,28 +486,20 @@ static int acpi_bus_check_device(struct acpi_device *device)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device removal detected\n"));
/* TBD: Handle device removal */
}
return 0;
}
static int acpi_bus_check_scope(struct acpi_device *device)
static void acpi_bus_check_scope(struct acpi_device *device)
{
int result = 0;
if (!device)
return -EINVAL;
return;
/* Status Change? */
result = acpi_bus_check_device(device);
if (result)
return result;
acpi_bus_check_device(device);
/*
* TBD: Enumerate child devices within this device's scope and
* run acpi_bus_check_device()'s on them.
*/
return 0;
}
static BLOCKING_NOTIFIER_HEAD(acpi_bus_notify_list);
@ -531,7 +522,6 @@ EXPORT_SYMBOL_GPL(unregister_acpi_bus_notifier);
*/
static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
{
int result = 0;
struct acpi_device *device = NULL;
struct acpi_driver *driver;
@ -547,7 +537,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
result = acpi_bus_check_scope(device);
acpi_bus_check_scope(device);
/*
* TBD: We'll need to outsource certain events to non-ACPI
* drivers via the device manager (device.c).
@ -555,7 +545,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
break;
case ACPI_NOTIFY_DEVICE_CHECK:
result = acpi_bus_check_device(device);
acpi_bus_check_device(device);
/*
* TBD: We'll need to outsource certain events to non-ACPI
* drivers via the device manager (device.c).