DALLAS — Josh Smith had 26 points and 13 rebounds, Devin Harris made a key steal in the final minute and the Atlanta Hawks beat the Dallas Mavericks 105-101 Monday night. Al Horford had 21 points and 10 rebounds and Jeff Teague scored 20 points to help the Hawks win for just the second time in their last 10 road games. With the Hawks up 99-98, Harris poked the ball from a driving O.J. Mayo and saved the ball from going out of bounds with 23.9 seconds left.