From 74b98dc82b66e0bf4db50a0c4ccb376a2bc441ae Mon Sep 17 00:00:00 2001
From: Zebediah Figura <z.figura12@gmail.com>
Date: Wed, 6 Nov 2019 00:13:16 -0600
Subject: [PATCH] ntoskrnl.exe: Implement IRP_MN_QUERY_DEVICE_RELATIONS for
 root-enumerated devices.

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@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 b5c4e6878e1..89676a06ad7 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: