Mike Woodson’s patience is running thin with J.R. Smith.

For the first time, the Knicks coach said he will have a quicker hook with the Sixth Man Award winner if his shooting woes continue. Smith’s jump shot has been in the gutter since returning in Game 5 of the first round against Boston after serving a one-game suspension for elbowing Jason Terry.

“If he’s struggling and I feel the need, I got to pull him,” Woodson said on his ESPN Radio show yesterday. “I will do that as head coach.”

Following Tuesday’s victory over Indiana in Game 2

of the Eastern Conference semifinals, Smith admitted, “My shot is lost for now.’’

But his father, Earl Smith, who taught J.R. all his offensive skills, said it’s only a matter of time before Smith starts lighting it up again.

“Shooters shoot. He’ll be fine,” Earl Smith said when contacted at his Jersey home. “A shooter has to keep shooting. You’re open, you got to shoot it. You can’t force a pass or you’ll turn it over. He’s got to keep shooting and taking it to the rack.’’

Smith was 4-of-15 in Sunday’s Game 1 second-round loss vs. Indiana and 3-of-15 Tuesday in Game 2’s victory — the lone down note on a great night for the Knicks.

Following Sunday’s game, Smith issued an angry tweet, writing he was “not clubbing’’ Saturday night, asking fans to stop trying to find reasons for his lost jumper.

A tweet from the official account of the 40/40 club had Smith in the Broadway bar watching the Floyd Mayweather fight, causing a Twitter storm. And then there was more gossip reports yesterday that following Game 2, Smith was partying with singer Rihanna at a Manhattan nightspot following his 3-of-15 brickfest.

Earl Smith said he is surprised at the negative reaction.

“My thing is, those people need to get off the computer and let professional athletes be professional athletes,’’ Earl said. “If they want to go out on a Saturday night, who gives a damn? Who cares? How come you don’t hear about LeBron [James] after he loses? You don’t think LeBron went out the other night [in Miami]? Leave the professional athletes alone. They know what they’re doing.

“Everybody likes him when he’s making shots,’’ Earl added. “He’s missing shots now. If he plays like he did [Tuesday] night and they win, I’ll take it. I told him if you play like that and you keep winning, we’ll take it. We’d rather that than he have a great game and they lose.’’

Woodson has shown more patience with Smith than any Knick, but Smith is 15-of-57 in his last four games, and Amar’e Stoudemire, scheduled to return in Game 3 Saturday, could be an added go-to piece off the bench.

“I’m not going to kick him to the curb,’’ Woodson said on his ESPN Radio Show yesterday. “He’s a big part of what we’ve done this season.”

However, Woodson added, “I’ll gauge J.R. as we go along. If I feel he’s not giving me anything, I can always turn to other guys on that bench. I feel good about the guys that come in off the bench.”

Asked how the flaky sixth man would accept a benching, Woodson said, “It wouldn’t be tough. If he’s committed as a player and trying to win this thing, he’s got to understand. It’s coaching. He’ll get another shot. If he’s about team, he’ll understand and wait his turn again.’’