From 7941c117bc8ee8fbc33f727556d0aaaa4be0bb76 Mon Sep 17 00:00:00 2001
From: hidnplayr <hidnplayr@kolibrios.org>
Date: Sun, 20 Jan 2008 20:51:24 +0000
Subject: [PATCH] changes to attach_int_handler: detect if int is not larger
 then 15

(you could probably crash the kernel otherwise)

git-svn-id: svn://kolibrios.org@700 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 kernel/trunk/core/dll.inc | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/kernel/trunk/core/dll.inc b/kernel/trunk/core/dll.inc
index d9951d2584..50f59b47dd 100644
--- a/kernel/trunk/core/dll.inc
+++ b/kernel/trunk/core/dll.inc
@@ -16,12 +16,14 @@ DRV_VERSION equ (DRV_COMPAT shl 16) or DRV_CURRENT
 align 4
 proc attach_int_handler stdcall, irq:dword, handler:dword
 
-	 mov ebx, [irq]        ;irq num
+	 mov  ebx, [irq]	; irq num
 	 test ebx, ebx
-	 jz .err
-	 mov eax, [handler]
+	 jz  .err
+	 cmp  ebx, 15		; hidnplayr says: we only have 16 IRQ's
+	 jg  .err
+	 mov  eax, [handler]
 	 test eax, eax
-	 jz .err
+	 jz  .err
 	 mov [irq_tab+ebx*4], eax
 	 stdcall enable_irq, [irq]
 	 ret