Hmm....I had a simliar problem for a while but I don't think I could advise you without seeing you do a roll and your physiology.
If you can show me I might be able to help, no promises though.
Personally I found if I angled my hip the right way as I came out of the roll it would not hurt, and I would stand up quicker and easier...
But I learned to do rolls on the hardwood floor in my apt before concrete, I did it backwards and perfected my technique pretty quick. I have since learned to do many different styles of multi-directional rolls, and continuous forwards rolls using one leg, keeping the other tied back or off the ground in some way.
So yeah if I can I will help, I know how much the hip hurts, as I am very boney as well.