From 96b5a46e2a72dc1829370c87053e0cd558d58bc0 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 11 Feb 2008 20:52:01 -0800 Subject: [PATCH] WMI: initialize wmi_blocks.list even if ACPI is disabled Even if we don't want to register the WMI driver, we should initialize the wmi_blocks list to be empty, since we don't want the wmi helper functions to oops just because that basic list has not even been set up. With this, "find_guid()" will happily return "not found" rather than oopsing all over the place, and the callers will then just automatically return false or AE_NOT_FOUND as appropriate. Signed-off-by: Linus Torvalds --- drivers/acpi/wmi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c index 36b84ab..457ed3d 100644 --- a/drivers/acpi/wmi.c +++ b/drivers/acpi/wmi.c @@ -673,11 +673,11 @@ static int __init acpi_wmi_init(void) { acpi_status result; + INIT_LIST_HEAD(&wmi_blocks.list); + if (acpi_disabled) return -ENODEV; - INIT_LIST_HEAD(&wmi_blocks.list); - result = acpi_bus_register_driver(&acpi_wmi_driver); if (result < 0) { -- 2.7.4