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>
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@ -450,14 +450,13 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
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Notification Handling
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-------------------------------------------------------------------------- */
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static int acpi_bus_check_device(struct acpi_device *device)
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static void acpi_bus_check_device(struct acpi_device *device)
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{
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acpi_status status = 0;
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acpi_status status;
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struct acpi_device_status old_status;
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if (!device)
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return -EINVAL;
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return;
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old_status = device->status;
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@ -467,15 +466,15 @@ static int acpi_bus_check_device(struct acpi_device *device)
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*/
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if (device->parent && !device->parent->status.present) {
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device->status = device->parent->status;
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return 0;
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return;
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}
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status = acpi_bus_get_status(device);
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if (ACPI_FAILURE(status))
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return -ENODEV;
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return;
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if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))
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return 0;
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return;
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/*
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* Device Insertion/Removal
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@ -487,28 +486,20 @@ static int acpi_bus_check_device(struct acpi_device *device)
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device removal detected\n"));
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/* TBD: Handle device removal */
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}
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return 0;
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}
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static int acpi_bus_check_scope(struct acpi_device *device)
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static void acpi_bus_check_scope(struct acpi_device *device)
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{
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int result = 0;
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if (!device)
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return -EINVAL;
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return;
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/* Status Change? */
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result = acpi_bus_check_device(device);
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if (result)
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return result;
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acpi_bus_check_device(device);
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/*
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* TBD: Enumerate child devices within this device's scope and
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* run acpi_bus_check_device()'s on them.
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*/
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return 0;
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}
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static BLOCKING_NOTIFIER_HEAD(acpi_bus_notify_list);
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@ -531,7 +522,6 @@ EXPORT_SYMBOL_GPL(unregister_acpi_bus_notifier);
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*/
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static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
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{
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int result = 0;
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struct acpi_device *device = NULL;
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struct acpi_driver *driver;
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@ -547,7 +537,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
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switch (type) {
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case ACPI_NOTIFY_BUS_CHECK:
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result = acpi_bus_check_scope(device);
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acpi_bus_check_scope(device);
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/*
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* TBD: We'll need to outsource certain events to non-ACPI
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* drivers via the device manager (device.c).
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@ -555,7 +545,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
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break;
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case ACPI_NOTIFY_DEVICE_CHECK:
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result = acpi_bus_check_device(device);
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acpi_bus_check_device(device);
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/*
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* TBD: We'll need to outsource certain events to non-ACPI
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* drivers via the device manager (device.c).
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