From: short <>
Date: Sat, 1 Feb 2003 00:07:54 +0000 (+0000)
Subject: IofCallDriver(): Check for NULL MajorFunction handlers with KeBugCheck(0)
X-Git-Tag: captive-0_2~75
X-Git-Url: https://git.jankratochvil.net/?a=commitdiff_plain;h=53316df1a5762b17af907ae296956cac546d2412;p=reactos.git

IofCallDriver(): Check for NULL MajorFunction handlers with KeBugCheck(0)
 - support for gdb(1) to not to loose stackframe tracking if NULL is hit
---

diff --git a/ntoskrnl/io/irp.c b/ntoskrnl/io/irp.c
index 0b681f9..84e8e4d 100644
--- a/ntoskrnl/io/irp.c
+++ b/ntoskrnl/io/irp.c
@@ -131,6 +131,8 @@ IofCallDriver(PDEVICE_OBJECT DeviceObject,
   DPRINT("MajorFunction %d\n", Param->MajorFunction);
   DPRINT("DriverObject->MajorFunction[Param->MajorFunction] %x\n",
 	 DriverObject->MajorFunction[Param->MajorFunction]);
+  if (!DriverObject->MajorFunction[Param->MajorFunction])
+    KeBugCheck(0);
   Status = DriverObject->MajorFunction[Param->MajorFunction](DeviceObject,
 							     Irp);