Commit 96b5a46e authored Feb 11, 2008 by Linus Torvalds

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 <torvalds@linux-foundation.org>

parent 2c158269

drivers/acpi/wmi.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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) {