the owner of the famous Bunny Ranch where Lamar Odom overdosed — has passed away at the age of 72.

Law enforcement sources tell us they got a 911 call from Hof’s Love Ranch in Crystal, Nevada around 11 AM. We’re told the call was for an unresponsive male. Detectives are currently on scene … no foul play is suspected. Hof shot to stardom as the star of HBO series ” Cathouse” which followed him as he ran his famous brothels in Nevada .

Hof recently celebrated his birthday with a weekend-long bash that included many celebs like Ron Jermey, flavor flav and more.