From badc969545cf31f77a1a57ea97ad0863ded592f5 Mon Sep 17 00:00:00 2001
From: Keir Fraser <keir.fraser@citrix.com>
Date: Wed, 2 Jul 2008 09:45:18 +0100
Subject: [PATCH] ioemu: Add check for mapping MSI pirqs. From: Haitao Shan
 <haitao.shan@intel.com> Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

---
 tools/ioemu/hw/pt-msi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/ioemu/hw/pt-msi.c b/tools/ioemu/hw/pt-msi.c
index 0af05e788f..5e7c479551 100644
--- a/tools/ioemu/hw/pt-msi.c
+++ b/tools/ioemu/hw/pt-msi.c
@@ -94,6 +94,13 @@ static int pt_msi_setup(struct pt_dev *dev)
         PT_LOG("error map msi\n");
         return -1;
     }
+
+    if ( pirq < 0 )
+    {
+        PT_LOG("invalid pirq number\n");
+        return -1;
+    }
+
     dev->msi->pirq = pirq;
     PT_LOG("msi mapped with pirq %x\n", pirq);
 
-- 
2.30.2