Zebediah Figura : ntoskrnl.exe: Implement IRP_MN_QUERY_DEVICE_RELATIONS for root-enumerated devices.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 74b98dc82b66e0bf4db50a0c4ccb376a2bc441ae
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=74b98dc82b66e0bf4db50a0c4...

Author: Zebediah Figura <z.figura12(a)gmail.com>
Date:   Wed Nov  6 00:13:16 2019 -0600

ntoskrnl.exe: Implement IRP_MN_QUERY_DEVICE_RELATIONS for root-enumerated devices.

Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/ntoskrnl.exe/pnp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/ntoskrnl.exe/pnp.c b/dlls/ntoskrnl.exe/pnp.c
index b5c4e6878e..89676a06ad 100644
--- a/dlls/ntoskrnl.exe/pnp.c
+++ b/dlls/ntoskrnl.exe/pnp.c
@@ -821,6 +821,9 @@ static NTSTATUS WINAPI pnp_manager_device_pnp( DEVICE_OBJECT *device, IRP *irp )
 
     switch (stack->MinorFunction)
     {
+    case IRP_MN_QUERY_DEVICE_RELATIONS:
+        /* The FDO above already handled this, so return the same status. */
+        break;
     case IRP_MN_START_DEVICE:
     case IRP_MN_SURPRISE_REMOVAL:
     case IRP_MN_REMOVE_DEVICE: