- Add missing ExAllocatePool NULL checks.
- Fix order of KeBugCheckEx parameters for PNP_DETECTED_FATAL_ERROR.
- The Controller and Peripheral numbers are zero-based, so if the caller
wants to inspect controller (or peripheral) zero, let it be so!
The original code was treating controller number zero for enumerating
controllers of a given class within the different buses, which is
wrong. See the diff'ed trace below.
Tested with Windows' videoprt.sys VideoPortGetDeviceData().
```diff
IoQueryDeviceDescription()
BusType: 0xB093C224 (0)
BusNumber: 0xB093C228 (0)
ControllerType: 0xF9D01030 (19)
ControllerNumber: 0xF9D01038 (0)
PeripheralType: 0x00000000 (4294967295)
PeripheralNumber: 0x00000000 (4294967295)
CalloutRoutine: 0xF9CF74E4
Context: 0xF9D5A340
--> Query: 0xF9D5A22C
IopQueryBusDescription(Query: 0xF9D5A22C)
RootKey: '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM'
RootKeyHandle: 0x00000598
KeyIsRoot: TRUE
Bus: 0xF9D5A290 (4294967295)
Seen: 'CentralProcessor'
Seen: 'FloatingPointProcessor'
Seen: 'MultifunctionAdapter'
SubRootRegName: '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter'
IopQueryBusDescription(Query: 0xF9D5A22C)
RootKey: '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter'
RootKeyHandle: 0x00000590
KeyIsRoot: FALSE
Bus: 0xF9D5A290 (4294967295)
Seen: '0'
SubRootRegName: '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0'
Getting bus value: 'Identifier'
Getting bus value: 'Configuration Data'
Getting bus value: 'Component Information'
--> Getting device on Bus #0 : '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0'
IopQueryDeviceDescription(Query: 0xF9D5A22C)
RootKey: '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0'
RootKeyHandle: 0x00000590
Bus: 0
- Enumerating controllers in '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0\DisplayController'...
+ Getting controller #0
+ Retrieving controller '\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\MultifunctionAdapter\0\DisplayController\0'
```
- Fix whitespace; add SAL annotations, doxygen documentation...
- Deduplicate the array of description strings corresponding to
IO_QUERY_DEVICE_DATA_FORMAT.
- Unhardcode the "[3]" into 'IoQueryDeviceMaxData': the maximum number
of device data queried.
