WEBB, Judge.
This post-judgment garnishment case is controlled by Coursin v. Harper, 236 Ga. 729 ( 225 S.E.2d 428), as the affidavit upon which the summons of garnishment was issued was given prior to July 1, 1975. Battles v. Battles, 138 Ga. App. 841 ( 227 S.E.2d 524). This proceeding must therefore be declared "void and of no effect" ( Rose, Silverman Hunt v. Ben O'Callaghan Co., 134 Ga. App. 648 ( 215 S.E.2d 515), where we decided the issue sua sponte), and the judgment dismissing the proceeding is affirmed. "It is fundamental that a judgment of a trial court which is right will be affirmed on appeal even though the trial judge in rendering his judgment may have assigned a wrong reason therefor." Sims T. V., Inc. v. Fireman's Fund Ins. Co., 108 Ga. App. 41, 43 ( 131 S.E.2d 790).
Judgment affirmed. Deen, P. J., and Smith, J., concur.
ARGUED OCTOBER 4, 1976 — DECIDED OCTOBER 19, 1976.