{¶ 1} We affirm the judgment dismissing the petition of appellant, Jeffrey C. Keith, for a writ of habeas corpus. Res judicata bars Keith from filing a successive habeas corpus petition insofar as he raises claims that he either raised or could have raised in his previous petition. Amstutz v. Eberlin, 119 Ohio St.3d 421, 2008-Ohio-4538, 894 N.E.2d 1219, ¶ 7; Keith v. Bobby, 117 Ohio St.3d 470, 2008-Ohio-1443, 884 N.E.2d 1067. Moreover, as the court of appeals held, Keith’s initial sentence is not void and has not expired, and he has or had an adequate *162 remedy by appeal to raise his claims that the trial court judges were improperly assigned to his criminal cases. See Keith at ¶ 12, 14.

Judgment affirmed.