Lin got the rebound and passed it ahead for a Smith layup and five-point lead with 28.5 seconds left.
The Mavericks used different players to defend Lin. They started out putting 6-7 forward Shawn Marion on Lin. Jason Kidd was on him for some time. But Lin continued to show he's unflappable and can play big in big moments.
Playing for the seventh straight game without the injured Carmelo Anthony, the Knicks got a lift from Smith, just signed Friday after returning from China. Smith hit three of the Knicks' 12 3-pointers.
Lin had nine turnovers, tied for the most in the NBA this season, Friday in an 89-85 loss to New Orleans that stopped a seven-game winning streak. He has committed six or more in six straight games, but D'Antoni said Saturday he wanted Lin to keep taking risks.