Mike Richards elbow on Patrick Kaleta

I not sure what to make out of this call, if was a definitely an elbow to the head of Patrick Kaleta but I believe that Mike Richards was trying to protect himself from getting hit by Kaleta. Should Mike Richards be suspended for this hit? I don't know, it's different than some of the other hits we have seen during the Stanley Cup Playoffs. Was the penalty 5, 10 and a game misconduct enough? That is what the NHL is going to have to decide.