What is the test for awarding attorney's fees for abuse of discretion?

"We review a district court's award of attorney's fees for abuse of discretion, which occurs when (1) the court's decision rests on an error of law (such as application of the wrong legal principle) or clearly erroneous factual finding, or (2) its decisionthough not necessarily the product of a legal error or a clearly erroneous factual findingcannot be located within the range of permissible decisions." McDaniel v. County of Schenectady, 595 F.3d 411, 416 (2d Cir. 2010) (citation, alteration, and internal quotation marks omitted).