Camara, 31, started only three Wigan games this term and made just 10 appearances on loan at West Ham last season.
He said: "I had a wasted year and then spent most of this season on the bench.
"I understand and respect Steve Bruce totally. He's the manager and has done brilliantly with the Wigan team.
"But when I was given this chance I had to take it for the sake of my career."