According to TMZ, Smith pleaded no-contest to charges of false imprisonment and violating a court order. He also accepted a 90-day sentence in county jail but was credited for the time he already served.
Smith originally faced misdemeanor charges of domestic violence, assault with force likely to produce bodily injury, false imprisonment and vandalism.
Smith turned himself in to authorities in March after he was the suspect in a domestic violence complaint. The Mercury News' Rick Hurd reported the victim called police to say Smith had struck her and "bit her wrists" before leaving the scene.
The San Francisco 49ers selected Smith in the first round of the 2011 draft. The 49ers released him in August 2015, shortly after the 29-year-old was arrested for an alleged hit and run and DUI. It was his second arrest on suspicion of DUI.
Smith signed a one-year deal with the Oakland Raiders in September 2015 but subsequently received a yearlong suspension as a consequence of the alleged hit and run. He appeared in just seven games—all of which came in 2015—before the Raiders released him in March after his arrest.