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reactos/ntoskrnl/io
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Hermès Bélusca-Maïto 84b4a80beb
[NTOS:IO] Fix some bugs in the IoQueryDeviceDescription helpers (#5320) 
- 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'
```
2023-06-14 11:20:56 +02:00
..
iomgr [NTOS:IO] Fix some bugs in the IoQueryDeviceDescription helpers (#5320) 2023-06-14 11:20:56 +02:00
pnpmgr [NTOS:PNP] Assign correct PnP IDs to the devices detected by bootloader 2023-06-11 16:19:02 +03:00
debug.c [FORMATTING][NTOS][HAL][DRIVERS][SDK] Fix trailing spaces 2021-06-11 15:33:08 +03:00
pnpio.h [NTOS:PNP] Add set functions for debugging PNP and IO managers. (#2457) 2020-04-04 14:30:40 +02:00