Do you feel any grinding, popping, clicking, etc. sensation when you extend your knee sitting up from a chair, or climbing stairs for example?
That does not seem like too much for one leg workout, as it seems like only your final sets of squats and deads were at or near max effort. If you're feeling like you have enough gas left in the tank, you'd even be alright to add an extra assistance leg exercise such as GHRs or lunges at the end.
How many days are you giving yourself between leg workouts? Recovery varies with each individual, but you have to find the right amount of time you need before training legs again. If you dont have a foam roller, get one, and try to use it all the days in between.
Oh yea, if you can get a video squatting and deadlifting that would be very helpful.