[reactos] 01/01: [NTOS:IO] Fix result length for DevicePropertyRemovalPolicy request in IoGetDeviceProperty. Classpnp expects it to be sizeof(DEVICE_REMOVAL_POLICY) see ClasspInitializeHotplugInfo in classpnp.sys

[Victor Perevertkin]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3d046e0ed2a8aa0a380fe6...

commit 3d046e0ed2a8aa0a380fe6c008c6bc207d53ec9e
Author:     Victor Perevertkin [e-mail]
AuthorDate: Sat Nov 16 23:52:03 2019 +0300
Commit:     Victor Perevertkin [e-mail]
CommitDate: Sun Nov 17 18:36:28 2019 +0300

[NTOS:IO] Fix result length for DevicePropertyRemovalPolicy request
    in IoGetDeviceProperty.
    Classpnp expects it to be sizeof(DEVICE_REMOVAL_POLICY)
    see ClasspInitializeHotplugInfo in classpnp.sys

CORE-6264
---
 ntoskrnl/io/pnpmgr/pnpmgr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ntoskrnl/io/pnpmgr/pnpmgr.c b/ntoskrnl/io/pnpmgr/pnpmgr.c
index 56b3561fefe..b08f63eb289 100644
--- a/ntoskrnl/io/pnpmgr/pnpmgr.c
+++ b/ntoskrnl/io/pnpmgr/pnpmgr.c
@@ -4240,6 +4240,7 @@ IoGetDeviceProperty(IN PDEVICE_OBJECT DeviceObject,
     GUID BusTypeGuid;
     POBJECT_NAME_INFORMATION ObjectNameInfo = NULL;
     BOOLEAN NullTerminate = FALSE;
+    DEVICE_REMOVAL_POLICY Policy;

DPRINT("IoGetDeviceProperty(0x%p %d)\n", DeviceObject, DeviceProperty);

@@ -4357,7 +4358,9 @@ IoGetDeviceProperty(IN PDEVICE_OBJECT DeviceObject,
             break;

case DevicePropertyRemovalPolicy:
-            PIP_RETURN_DATA(sizeof(UCHAR), &DeviceNode->RemovalPolicy);
+
+            Policy = DeviceNode->RemovalPolicy;
+            PIP_RETURN_DATA(sizeof(Policy), &Policy);

/* Handle the registry-based properties */
         case DevicePropertyUINumber: