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| author | Linus Torvalds | 2008-02-12 05:52:01 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2008-02-12 05:52:01 +0100 |
| commit | 96b5a46e2a72dc1829370c87053e0cd558d58bc0 (patch) | |
| tree | 1f327e4ee26377d40c5fcac8cda3f2fab03f6f09 | |
| parent | x86: vdso_install fix (diff) | |
| download | kernel-qcow2-linux-96b5a46e2a72dc1829370c87053e0cd558d58bc0.tar.gz kernel-qcow2-linux-96b5a46e2a72dc1829370c87053e0cd558d58bc0.tar.xz kernel-qcow2-linux-96b5a46e2a72dc1829370c87053e0cd558d58bc0.zip | |
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>
| -rw-r--r-- | drivers/acpi/wmi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c index 36b84ab418dd..457ed3d3f51c 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) { |