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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>
This commit is contained in:
Linus Torvalds 2008-02-11 20:52:01 -08:00
parent 2c15826998
commit 96b5a46e2a
1 changed files with 2 additions and 2 deletions
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4
drivers/acpi/wmi.c
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@ -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) {