From 96af61ddc1d1297200a497eb73628f0c3b0e3ad3 Mon Sep 17 00:00:00 2001
From: John Ferlan <jferlan@redhat.com>
Date: Wed, 8 Oct 2014 18:55:43 -0400
Subject: [PATCH] hotplug: Check for alias in net detach

https://bugzilla.redhat.com/show_bug.cgi?id=1141621

If the QEMU_CAPS_DEVICE is set, then ensure the host device alias has
been properly set before making the calls to detach the device
---
 src/qemu/qemu_hotplug.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index f79a37aeb7..33241fb75c 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -3530,6 +3530,12 @@ qemuDomainDetachNetDevice(virQEMUDriverPtr driver,
         }
     }
 
+    if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE) &&
+        !detach->info.alias) {
+        if (qemuAssignDeviceNetAlias(vm->def, detach, -1) < 0)
+            goto cleanup;
+    }
+
     qemuDomainMarkDeviceForRemoval(vm, &detach->info);
 
     qemuDomainObjEnterMonitor(driver, vm);
-- 
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