From 03dd780ddd92e5a7af1679c322de5523ad037766 Mon Sep 17 00:00:00 2001
From: xueshaojia 00464843 <xueshaojia@huawei.com>
Date: Fri, 1 Mar 2019 16:13:42 +0800
Subject: [PATCH] qemu: fix devID value error

reason: When excutes ExecuteNetCCWDeviceAdd, the DevID is always "virtio-".
If add-iface multy times, qemu may report "dumplicated id:virtio-".

Fixes: #1305

Signed-off-by: xueshaojia <xueshaojia@huawei.com>
---
 virtcontainers/qemu.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/virtcontainers/qemu.go b/virtcontainers/qemu.go
index b3a3e634ec..25e78ea06f 100644
--- a/virtcontainers/qemu.go
+++ b/virtcontainers/qemu.go
@@ -949,7 +949,6 @@ func (q *qemu) hotplugNetDevice(endpoint Endpoint, op operation) error {
 		return err
 	}
 	var tap TapInterface
-	devID := "virtio-" + tap.ID
 
 	switch endpoint.Type() {
 	case VethEndpointType:
@@ -962,6 +961,7 @@ func (q *qemu) hotplugNetDevice(endpoint Endpoint, op operation) error {
 		return fmt.Errorf("this endpoint is not supported")
 	}
 
+	devID := "virtio-" + tap.ID
 	if op == addDevice {
 
 		if err = q.hotAddNetDevice(tap.Name, endpoint.HardwareAddr(), tap.VMFds, tap.VhostFds); err != nil {