From: Rafael J. Wysocki Date: Thu, 21 May 2026 14:04:03 +0000 (+0200) Subject: ACPI: HED: Switch over to devres-based resource management X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=3159c5fcdd3a5eae70b45cbdf453d408266f547d;p=thirdparty%2Fkernel%2Flinux.git ACPI: HED: Switch over to devres-based resource management Use the newly introduced devm_acpi_install_notify_handler() for installing an ACPI notify handler and since that function checks the ACPI companion of the owner device against NULL internally, remove the the explicit ACPI companion check from acpi_hed_probe(). No intentional functional impact. Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/7950702.EvYhyI6sBW@rafael.j.wysocki --- diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c index 4b5dc95922ea7..48562f53d3ab3 100644 --- a/drivers/acpi/hed.c +++ b/drivers/acpi/hed.c @@ -50,19 +50,14 @@ static void acpi_hed_notify(acpi_handle handle, u32 event, void *data) static int acpi_hed_probe(struct platform_device *pdev) { - struct acpi_device *device; int err; - device = ACPI_COMPANION(&pdev->dev); - if (!device) - return -ENODEV; - /* Only one hardware error device */ if (hed_present) return -EINVAL; - err = acpi_dev_install_notify_handler(device, ACPI_DEVICE_NOTIFY, - acpi_hed_notify, device); + err = devm_acpi_install_notify_handler(&pdev->dev, ACPI_DEVICE_NOTIFY, + acpi_hed_notify, NULL); if (err) return err; @@ -72,11 +67,7 @@ static int acpi_hed_probe(struct platform_device *pdev) static void acpi_hed_remove(struct platform_device *pdev) { - struct acpi_device *device = ACPI_COMPANION(&pdev->dev); - hed_present = false; - acpi_dev_remove_notify_handler(device, ACPI_DEVICE_NOTIFY, - acpi_hed_notify); } static struct platform_driver acpi_hed_driver = {