At 10:51 of the third period in the Hurricanes/Lightning game, Carolina requested a Coach's Challenge to review whether Tampa Bay was off-side prior to Tyler Johnson's goal.
After reviewing all available replays and consulting with the linesmen, NHL Hockey Operations staff determined that the Lightning entered the attacking zone legally prior to the goal.

Therefore the original call stands - good goal Tampa Bay Lightning.
Since the Coach's Challenge did not result in the original call being overturned, the Carolina Hurricanes forfeit their time-out.