tkestack/galaxy: pkg/network/vlan/vlan.go; 20 LoC

Found a possible issue in [tkestack/galaxy](https://www.github.com/tkestack/galaxy) at [pkg/network/vlan/vlan.go](https://github.com/tkestack/galaxy/blob/7f274b175a358d981341bb46cba1cdb794bc69a6/pkg/network/vlan/vlan.go#L190-L209)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

> range-loop variable i used in defer or goroutine at line 197

[Click here to see the code in its original context.](https://github.com/tkestack/galaxy/blob/7f274b175a358d981341bb46cba1cdb794bc69a6/pkg/network/vlan/vlan.go#L190-L209)

Click here to show the 20 line(s) of Go which triggered the analyzer.

```go
for i := range filteredAddr {
if err = netlink.AddrDel(device, &filteredAddr[i]); err != nil {
return fmt.Errorf("failed to remove v4address from device %s: %v", d.Device, err)
}
// nolint: errcheck
defer func() {
if err != nil {
netlink.AddrAdd(device, &filteredAddr[i])
}
}()
filteredAddr[i].Label = ""
if err = netlink.AddrAdd(bri, &filteredAddr[i]); err != nil {
if !strings.Contains(err.Error(), "file exists") {
return fmt.Errorf("failed to add v4address to bridge device %s: %v, address %v", d.DefaultBridgeName,
err, filteredAddr[i])
} else {
err = nil
}
}
}

```

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See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 7f274b175a358d981341bb46cba1cdb794bc69a6