From bd142914f805b88dcb15acaab9fbc9bea666dd32 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Mon, 18 Dec 2023 20:24:20 +0100 Subject: [PATCH] platform/x86: wmi: Simplify get_subobj_info() All callers who call get_subobj_info() with **info being NULL should better use acpi_has_method() instead. Convert the only caller who does this to acpi_has_method() to drop the dummy info handling. Reviewed-by: Hans de Goede Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20231218192420.305411-7-W_Armin@gmx.de Signed-off-by: Hans de Goede --- drivers/platform/x86/wmi.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 559a99ebc6243..a7cfcbf92432c 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -132,23 +132,19 @@ static const void *find_guid_context(struct wmi_block *wblock, static int get_subobj_info(acpi_handle handle, const char *pathname, struct acpi_device_info **info) { - struct acpi_device_info *dummy_info, **info_ptr; acpi_handle subobj_handle; acpi_status status; - status = acpi_get_handle(handle, (char *)pathname, &subobj_handle); + status = acpi_get_handle(handle, pathname, &subobj_handle); if (status == AE_NOT_FOUND) return -ENOENT; - else if (ACPI_FAILURE(status)) - return -EIO; - info_ptr = info ? info : &dummy_info; - status = acpi_get_object_info(subobj_handle, info_ptr); if (ACPI_FAILURE(status)) return -EIO; - if (!info) - kfree(dummy_info); + status = acpi_get_object_info(subobj_handle, info); + if (ACPI_FAILURE(status)) + return -EIO; return 0; } @@ -998,9 +994,7 @@ static int wmi_create_device(struct device *wmi_bus_dev, kfree(info); get_acpi_method_name(wblock, 'S', method); - result = get_subobj_info(device->handle, method, NULL); - - if (result == 0) + if (acpi_has_method(device->handle, method)) wblock->dev.setable = true; out_init: -- 2.30.2