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platform/x86: wmi: Check if WMxx control method exists

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Some devices like the MSI GF63-12VF contain WMI method blocks
without providing the necessary WMxx ACPI control methods.
Avoid creating WMI devices for such WMI method blocks since
the resulting WMI device is going to be unusable.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20240206220447.3102-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Armin Wolf 2024-02-06 23:04:44 +01:00 committed by Ilpo Järvinen
parent 197b980644
commit 7f1b998a91
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1 changed files with 9 additions and 0 deletions
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9
drivers/platform/x86/wmi.c
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@ -958,6 +958,15 @@ static int wmi_create_device(struct device *wmi_bus_dev,
}
if (wblock->gblock.flags & ACPI_WMI_METHOD) {
get_acpi_method_name(wblock, 'M', method);
if (!acpi_has_method(device->handle, method)) {
dev_warn(wmi_bus_dev,
FW_BUG "%s method block execution control method not found\n",
method);
return -ENXIO;
}
wblock->dev.dev.type = &wmi_type_method;
goto out_init;
}