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ACPI / scan: Simplify acpi_bus_extract_wakeup_device_power_package()

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acpi_bus_extract_wakeup_device_power_package() is a static function
with a single caller that supplies (device->handle, &device->wakeup).

Simplify the interface so the caller need only supply "device".

This makes it obvious that "wakeup", i.e., &device->wakeup, can never
be NULL, so remove the unnecessary check for that.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bjorn Helgaas 2019-03-25 13:34:02 -05:00 committed by Rafael J. Wysocki
parent 8c2ffd9174
commit 40381a3c1f
1 changed files with 4 additions and 7 deletions
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11
drivers/acpi/scan.c
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@ -763,18 +763,16 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)
}
EXPORT_SYMBOL_GPL(acpi_bus_get_ejd);
static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
struct acpi_device_wakeup *wakeup)
static int acpi_bus_extract_wakeup_device_power_package(struct acpi_device *dev)
{
acpi_handle handle = dev->handle;
struct acpi_device_wakeup *wakeup = &dev->wakeup;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *package = NULL;
union acpi_object *element = NULL;
acpi_status status;
int err = -ENODATA;
if (!wakeup)
return -EINVAL;
INIT_LIST_HEAD(&wakeup->resources);
/* _PRW */
@ -883,8 +881,7 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
if (!acpi_has_method(device->handle, "_PRW"))
return;
err = acpi_bus_extract_wakeup_device_power_package(device->handle,
&device->wakeup);
err = acpi_bus_extract_wakeup_device_power_package(device);
if (err) {
dev_err(&device->dev, "_PRW evaluation error: %d\n", err);
return;