ACPI button: don't try to use a non-existent lid device
If a call comes in to check the lid state but there's no lid device present, we should return -ENODEV. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -251,6 +251,9 @@ int acpi_lid_open(void)
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acpi_status status;
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unsigned long long state;
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if (!lid_device)
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return -ENODEV;
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status = acpi_evaluate_integer(lid_device->handle, "_LID", NULL,
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&state);
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if (ACPI_FAILURE(status))
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