[NTOS:IO] Handle missing device instance in IopInitializeBuiltinDriver. CORE-18793

[reactos.git] / ntoskrnl / io / iomgr / driver.c

diff --git a/ntoskrnl/io/iomgr/driver.c b/ntoskrnl/io/iomgr/driver.c
index 61ac27e..498b09e 100644 (file)
--- a/ntoskrnl/io/iomgr/driver.c
+++ b/ntoskrnl/io/iomgr/driver.c
@@ -967,9 +967,16 @@ IopInitializeBuiltinDriver(IN PLDR_DATA_TABLE_ENTRY BootLdrEntry)
                 instancePath.Buffer[instancePath.Length / sizeof(WCHAR)] = UNICODE_NULL;
 
                 PDEVICE_OBJECT pdo = IopGetDeviceObjectFromDeviceInstance(&instancePath);
-                PiQueueDeviceAction(pdo, PiActionAddBootDevices, NULL, NULL);
-                ObDereferenceObject(pdo);
-                deviceAdded = TRUE;
+                if (pdo != NULL)
+                {
+                    PiQueueDeviceAction(pdo, PiActionAddBootDevices, NULL, NULL);
+                    ObDereferenceObject(pdo);
+                    deviceAdded = TRUE;
+                }
+                else
+                {
+                    DPRINT1("No device node found matching instance path '%wZ'\n", &instancePath);
+                }
             }
 
             ExFreePool(kvInfo);