This reverts commit 7b11e8989618581bc0226ad313264cdc05d48d86. Consider the following hardware setting. |-PNP0C14:00 | |-- device #1 |-PNP0C14:01 | |-- device #2 When unloading wmi driver module, device #2 will be first unregistered. But device_destroy() using MKDEV(0, 0) will locate PNP0C14:00 first and unregister it. This is incorrect. Should use device_unregister() to unregister the real parent device. Signed-off-by: Yongxin Liu <yongxin.liu@xxxxxxxxxxxxx> --- drivers/platform/x86/wmi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 59e9aa0f9643..e16f660aa117 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -1347,7 +1347,7 @@ static int acpi_wmi_remove(struct platform_device *device) acpi_remove_address_space_handler(acpi_device->handle, ACPI_ADR_SPACE_EC, &acpi_wmi_ec_space_handler); wmi_free_devices(acpi_device); - device_destroy(&wmi_bus_class, MKDEV(0, 0)); + device_unregister((struct device *)dev_get_drvdata(&device->dev)); return 0; } @@ -1401,7 +1401,7 @@ static int acpi_wmi_probe(struct platform_device *device) return 0; err_remove_busdev: - device_destroy(&wmi_bus_class, MKDEV(0, 0)); + device_unregister(wmi_bus_dev); err_remove_notify_handler: acpi_remove_notify_handler(acpi_device->handle, ACPI_DEVICE_NOTIFY, -- 2.14.4
