Claudio, is your supervisor concerned ? He'd be your best bet to talk to about it. Or, if you don't feel comfortable, talk to someone more independent such as your second supervisor (if you have one) or the head of the department you're working in.
If it's good enough to pass then you should be able to publish something. A PhD doesn't have to be published for you to pass your viva but it does need to be publishable, at least in part. Good luck with your viva!
Sit your viva, pass it and then walk away. Do not blame your supervisor..thank him for his input and then say goodbye. Academia is a small world and you are just starting out. You will need a good reference.