What is the test for habeas corpus relief in the context of jury instructions?

A petitioner challenging the correctness of jury instructions is not entitled to federal habeas corpus relief unless "the ailing instruction by itself so infected the entire trial that the resulting conviction violates due process." Cupp v. Naughten, 414 U.S. 141, 147 (1973). In determining the validity of jury instructions "a single instruction to a jury must be viewed in the context of the overall charge." Id. at 146.