Commit f61bb939 authored by Bjorn Helgaas's avatar Bjorn Helgaas Committed by Len Brown

ACPI: WMI: use .notify method instead of installing handler directly

This patch adds a .notify() method.  The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.
Signed-off-by: default avatarBjorn Helgaas <bjorn.helgaas@hp.com>
CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 8037d6e6
......@@ -81,6 +81,7 @@ static struct wmi_block wmi_blocks;
static int acpi_wmi_remove(struct acpi_device *device, int type);
static int acpi_wmi_add(struct acpi_device *device);
static void acpi_wmi_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id wmi_device_ids[] = {
{"PNP0C14", 0},
......@@ -96,6 +97,7 @@ static struct acpi_driver acpi_wmi_driver = {
.ops = {
.add = acpi_wmi_add,
.remove = acpi_wmi_remove,
.notify = acpi_wmi_notify,
},
};
......@@ -643,12 +645,11 @@ acpi_wmi_ec_space_handler(u32 function, acpi_physical_address address,
}
}
static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
static void acpi_wmi_notify(struct acpi_device *device, u32 event)
{
struct guid_block *block;
struct wmi_block *wblock;
struct list_head *p;
struct acpi_device *device = data;
list_for_each(p, &wmi_blocks.list) {
wblock = list_entry(p, struct wmi_block, list);
......@@ -669,9 +670,6 @@ static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
static int acpi_wmi_remove(struct acpi_device *device, int type)
{
acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
acpi_wmi_notify);
acpi_remove_address_space_handler(device->handle,
ACPI_ADR_SPACE_EC, &acpi_wmi_ec_space_handler);
......@@ -683,13 +681,6 @@ static int __init acpi_wmi_add(struct acpi_device *device)
acpi_status status;
int result = 0;
status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
acpi_wmi_notify, device);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Error installing notify handler\n");
return -ENODEV;
}
status = acpi_install_address_space_handler(device->handle,
ACPI_ADR_SPACE_EC,
&acpi_wmi_ec_space_handler,
......
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