From b0c501514087f12b0b2b62e9e0424a768f6f898a Mon Sep 17 00:00:00 2001
From: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Date: Sun, 5 Sep 2010 08:20:47 +0000
Subject: [PATCH] If source_index is != 0 it is hardwired to a GSI (Global
 System Interrupt).

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38532 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/kernel/arch/x86/arch_int.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/system/kernel/arch/x86/arch_int.cpp b/src/system/kernel/arch/x86/arch_int.cpp
index f7dd272925..b7ca2cd520 100644
--- a/src/system/kernel/arch/x86/arch_int.cpp
+++ b/src/system/kernel/arch/x86/arch_int.cpp
@@ -671,8 +671,8 @@ ioapic_init(kernel_args* args)
 		config |= irqDescriptor.polarity;
 		config |= irqDescriptor.interrupt_mode;
 		
-		int32 num = -1;
-		for (int a = 0; a < 16; a++) {
+		int32 num = entry.source_index;		
+		for (int a = 0; a < 16 && num == 0; a++) {
 			if (irqDescriptor.irq >> i & 0x01) {
 				num = a;
 				break;