libusb panic with multiple close calls on linux

[isaacvr]

Describe the bug
The usb library panics when the Close function is called multiple times on the same connection

Steps to Reproduce
Steps to reproduce the behavior:

1. Replace this with https://github.com/skycoin/hardware-wallet-go/blob/55c993a8e132901cff67d3acbb6be3266fdb1ff1/src/skywallet/skywallet.go#L656-L668

// GetFeatures send Features message to the device
func (d *Device) GetFeatures() (wire.Message, error) {
	if err := d.Connect(); err != nil {
		return wire.Message{}, err
	}
	d.dev.Close(false)
	d.dev.Close(false)
	
	return wire.Message{}, nil
}

2. Then execute this command

$ go run cmd/cli/cli.go features

Actual behavior
panic in usblib

Expected behavior
no panic in usblib