出错的时候，数据连接没有关闭

[baiguidong]

connGetter, err := pconn.prepareDataConn()
if err != nil {
pconn.debug("error preparing data connection: %s", err)
return 0, err
}

var cmd string
if dest == nil && src != nil {
	cmd = "STOR"
} else if dest != nil && src == nil {
	cmd = "RETR"
} else {
	panic("this shouldn't happen")
}

err = pconn.sendCommandExpected(replyGroupPreliminaryReply, "%s %s", cmd, path)
if err != nil {
	return 0, err

--------------------------------->>
}

dc, err := connGetter()
if err != nil {
	pconn.debug("error getting data connection: %s", err)
	return 0, err
}

出错的时候，数据连接没有关闭

[baiguidong]

The data connection was not closed when an error occurred