NASHVILLE, Tenn. (AP) — Backup goalie Casey DeSmith finally has his first postseason victory, and he helped the Vancouver Canucks take back home-ice advantage in the process. DeSmith made 29 saves as the Canucks held off the Nashville Predators 2-1 Friday night for a 2-1 lead in their best-of-seven series to open the NHL playoffs. “It couldn’t come at a better time," DeSmith said of his first playoff victory. "I was really disappointed with how I played the other night. I thought the team played