Quitting a job in China

I came to Beijing in April 2013 as a trailing spouse (my wife is a teacher). I since found a full time job and obtained a work permit and residence permit. When the new residence permit was issued my trailing spouse visa was canceled. If I leave my job (I don't like it much) is my residence permit still valid until the expiration date of Jan. 2015 or is it canceled at the time I leave my current job?

Thanks