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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-05-22 11:43:51 -0600
committerLen Brown <len.brown@intel.com>2009-06-18 00:13:15 -0400
commitcdd5b8ca122cc4239375dee7fcdc658315c119e4 (patch)
tree6f806a53f64c184949cdbec807f4b1704fa6fdd5 /drivers/acpi/bus.c
parentaa8a149c0cc822e3886eb85b95cb2f7d67e5b7e6 (diff)
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>
Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c32
1 files changed, 11 insertions, 21 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 19e78fb0a8d..2b08c3dc79d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -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).