From 5e966ce6f44c29c3b9d5349c25c75de145d8a0b1 Mon Sep 17 00:00:00 2001
From: pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Thu, 28 Sep 2006 19:52:59 +0000
Subject: [PATCH] PCI IRC routing fix.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2185 c046a42c-6fe2-441c-8c8c-71466251a162
---
 hw/pci.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/hw/pci.c b/hw/pci.c
index 7c9db0e8d4..bc7c779e59 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -435,11 +435,12 @@ void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level)
         return;
 
     pci_dev->irq_state[irq_num] = level;
-    bus = pci_dev->bus;
-    while (!bus->set_irq) {
-        irq_num = bus->map_irq(pci_dev, irq_num);
-        pci_dev = bus->parent_dev;
+    for (;;) {
         bus = pci_dev->bus;
+        irq_num = bus->map_irq(pci_dev, irq_num);
+        if (bus->set_irq)
+            break;
+        pci_dev = bus->parent_dev;
     }
     bus->irq_count[irq_num] += change;
     bus->set_irq(bus->irq_opaque, irq_num, bus->irq_count[irq_num] != 0);