ACPI: PAD: Rearrange notify handler installation and removal

Use acpi_dev_install_notify_handler() and acpi_dev_remove_notify_handler()
for installing and removing the ACPI notify handler, respectively, which
allows acpi_pad_notify() and acpi_pad_remove() to be simplified quite a
bit.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2011993.taCxCBeP46@rafael.j.wysocki

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index c9a0bcaba2e4c148b45c3d8f5da73ccb50022858..407a0d68525c9196f36f9a7ae4e2a1dc798e4930 100644 (file)
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -407,8 +407,7 @@ static void acpi_pad_handle_notify(acpi_handle handle)
        mutex_unlock(&isolated_cpus_lock);
 }
 
-static void acpi_pad_notify(acpi_handle handle, u32 event,
-       void *data)
+static void acpi_pad_notify(acpi_handle handle, u32 event, void *data)
 {
        struct acpi_device *adev = data;
 
@@ -427,30 +426,22 @@ static void acpi_pad_notify(acpi_handle handle, u32 event,
 static int acpi_pad_probe(struct platform_device *pdev)
 {
        struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
-       acpi_status status;
 
        strscpy(acpi_device_name(adev), ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME);
        strscpy(acpi_device_class(adev), ACPI_PROCESSOR_AGGREGATOR_CLASS);
 
-       status = acpi_install_notify_handler(adev->handle,
-               ACPI_DEVICE_NOTIFY, acpi_pad_notify, adev);
-
-       if (ACPI_FAILURE(status))
-               return -ENODEV;
-
-       return 0;
+       return acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY,
+                                              acpi_pad_notify, adev);
 }
 
 static void acpi_pad_remove(struct platform_device *pdev)
 {
-       struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
-
        mutex_lock(&isolated_cpus_lock);
        acpi_pad_idle_cpus(0);
        mutex_unlock(&isolated_cpus_lock);
 
-       acpi_remove_notify_handler(adev->handle,
-               ACPI_DEVICE_NOTIFY, acpi_pad_notify);
+       acpi_dev_remove_notify_handler(ACPI_COMPANION(&pdev->dev),
+                                      ACPI_DEVICE_NOTIFY, acpi_pad_notify);
 }
 
 static const struct acpi_device_id pad_device_ids[] = {