I just made oatmeal raisin cookies and used the oatmeal that was already in the?

cupboard. I think I used this oatmeal last when I made cookies for Thanksgiving, which would have been 8 months ago. I looked on the bottom of the container for the expiration date and it said good until 2011 sometime. Now I am wondering if the oatmeal was any good. I thought about just dumping this oatmeal and buying a new one, but I just decided to use it. Do you think this oatmeal was ok, or is it possible that it would be bad now?