From 520064c8b15504fb75babce7be6b5800b54ec490 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Fri, 11 May 2012 11:42:37 -0300
Subject: [PATCH] msi: Guard msi_reset with msi_present

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/msi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/msi.c b/hw/msi.c
index 5d6ceb6df0..b2903fc93c 100644
--- a/hw/msi.c
+++ b/hw/msi.c
@@ -191,6 +191,10 @@ void msi_reset(PCIDevice *dev)
     uint16_t flags;
     bool msi64bit;
 
+    if (!msi_present(dev)) {
+        return;
+    }
+
     flags = pci_get_word(dev->config + msi_flags_off(dev));
     flags &= ~(PCI_MSI_FLAGS_QSIZE | PCI_MSI_FLAGS_ENABLE);
     msi64bit = flags & PCI_MSI_FLAGS_64BIT;