From 69c3c8c50d3586124ff7014d9abf0da3d8338de7 Mon Sep 17 00:00:00 2001
From: lidafei_gg <447943025@qq.com>
Date: Mon, 21 Feb 2022 21:43:39 +0800
Subject: [PATCH 1/2] *fix We should not delete this if we are not
 IoCreateDevice before, Tested BSOD on Windows 10 version 1809.

---
 ktl/ktl_test/Main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ktl/ktl_test/Main.cpp b/ktl/ktl_test/Main.cpp
index 189745e..1e6fe35 100644
--- a/ktl/ktl_test/Main.cpp
+++ b/ktl/ktl_test/Main.cpp
@@ -24,7 +24,7 @@ extern "C" NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING Reg
 
 void TestUnload(PDRIVER_OBJECT DriverObject) {
 	delete g_RegPath;
-	IoDeleteDevice(DriverObject->DeviceObject);
+	//IoDeleteDevice(DriverObject->DeviceObject);
 }
 
 NTSTATUS TestCreateClose(PDEVICE_OBJECT, PIRP Irp) {

From faf6cd20c854c049ac07d655c4bf9a6344fd4bf2 Mon Sep 17 00:00:00 2001
From: lidafei_gg <447943025@qq.com>
Date: Mon, 21 Feb 2022 21:48:12 +0800
Subject: [PATCH 2/2] *fix We should compete irp with STATUS_SUCCESS, or our
 client app function DeviceIoControl will failed.

---
 chapter07/Zero/Zero.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/chapter07/Zero/Zero.cpp b/chapter07/Zero/Zero.cpp
index d357b55..8f873b4 100644
--- a/chapter07/Zero/Zero.cpp
+++ b/chapter07/Zero/Zero.cpp
@@ -124,11 +124,13 @@ NTSTATUS ZeroDeviceControl(PDEVICE_OBJECT, PIRP Irp) {
 			stats->TotalRead = g_TotalRead;
 			stats->TotalWritten = g_TotalWritten;
 			len = sizeof(ZeroStats);
+			status = STATUS_SUCCESS;
 			break;
 		}
 
 		case IOCTL_ZERO_CLEAR_STATS:
 			g_TotalRead = g_TotalWritten = 0;
+			status = STATUS_SUCCESS;
 			break;
 	}