Fix a bug introduced in 5070e8960a.
CORE-17256
- These handlers must be memory resident. Otherwise,
this would cause a page fault that needs to be resolved.
Low-level storage drivers could evaluate ACPI control
methods while the device's IRP queue has been paused.
- Minor code enhancements.
CORE-17256
- Implement support for complex input buffers.
This will enable the IDE driver with some hack
to execute the _STM (channel timing settings) control method.
- Fix a memory leak.
- Fix returned status code.
- Correctly calculate the output buffer size.
- Improve buffer validation.
- Implement support for async control requests.
- Implement local reference conversion.
- Implement support for subpackage argument conversion.
- Place some code into INIT section.
