AP on inadvertant whistle??

[imagomer]

I thought I had learned that this was the case, but now I can't find it. Two situations have gone against me lately, and I'm entertaining the notion that I may be the one who has it wrong. Ball hits top of backboard. Officiall blows it dead, then is reminded by me that the top is not OOB. I'm thinking this is inadvertant and should go to AP. He disagrees and awards ball to "rebounder." Next sitch: Whistle causes ball to be dead when official starts to call a backcourt violation, then realizes himself that my defense had touched the ball last. (this was still a contested ball in the backcourt with neither team yet in control when the whistle was blown because the offense had been the first to touch, not a case of the offense simply running back there and catching and controlling the ball immediately). Should possession have been determined by AP for either of these? Maybe I'm not clear on "inadvertant" versus "oops, my bad."