From 3936161f1fd72d1dfa577aaba910819c5e873260 Mon Sep 17 00:00:00 2001
From: "Herongguang (Stephen)" <herongguang.he@huawei.com>
Date: Tue, 25 Apr 2017 10:29:54 +0800
Subject: [PATCH] pci: deassert intx when pci device unrealize

If a pci device is not reset by VM (by writing into config space)
and unplugged by VM, after that when VM reboots, qemu may assert:
pcibus_reset: Assertion `bus->irq_count[i] == 0' failed

Cc: qemu-stable@nongnu.org
Signed-off-by: herongguang <herongguang.he@huawei.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/pci/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 259483b1c0..98ccc27533 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1083,6 +1083,7 @@ static void pci_qdev_unrealize(DeviceState *dev, Error **errp)
         pc->exit(pci_dev);
     }
 
+    pci_device_deassert_intx(pci_dev);
     do_pci_unregister_device(pci_dev);
 }