What are the results of this protest of Marius? For Jean Valjean?

I'm sorry, what "protest" are you referring to? Chapter? Event?

Do you mean the protest at General Lamarque's funeral? I think I did this same paper, because we had this same question phrased in the same way. The protest resulted in Marius losing Eponine, and Jean Valjean ends up saving Marius after intercepting one of his letters to Cosette.