[reactos] 01/01: [NTOS:PNP] Fix crash when removing a device without resources

[Hervé Poussineau]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=46fbc6f43231314551c6b…

commit 46fbc6f43231314551c6bc5d680386a5886b318a
Author:     Hervé Poussineau <hpoussin(a)reactos.org>
AuthorDate: Sun Oct 17 23:41:27 2021 +0200
Commit:     Hervé Poussineau <hpoussin(a)reactos.org>
CommitDate: Mon Oct 18 22:23:49 2021 +0200

    [NTOS:PNP] Fix crash when removing a device without resources
    
    This fixes commit 89fd2b86e4e1013269961a30c3f1135342df08c9
---
 ntoskrnl/io/pnpmgr/devaction.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/ntoskrnl/io/pnpmgr/devaction.c b/ntoskrnl/io/pnpmgr/devaction.c
index e9caa760bb5..2126d31e059 100644
--- a/ntoskrnl/io/pnpmgr/devaction.c
+++ b/ntoskrnl/io/pnpmgr/devaction.c
@@ -1652,9 +1652,13 @@ IopSendRemoveDevice(IN PDEVICE_OBJECT DeviceObject)
     PiIrpSendRemoveCheckVpb(DeviceObject, IRP_MN_REMOVE_DEVICE);
 
     /* Start of HACK: update resources stored in registry, so IopDetectResourceConflict
works */
-    DeviceNode->ResourceList->Count = 0;
-    DeviceNode->ResourceListTranslated->Count = 0;
-    IopUpdateResourceMapForPnPDevice(DeviceNode);
+    if (DeviceNode->ResourceList)
+    {
+        ASSERT(DeviceNode->ResourceListTranslated);
+        DeviceNode->ResourceList->Count = 0;
+        DeviceNode->ResourceListTranslated->Count = 0;
+        IopUpdateResourceMapForPnPDevice(DeviceNode);
+    }
     /* End of HACK */
 
     PiSetDevNodeState(DeviceNode, DeviceNodeRemoved);