bn_test: use bn_copy() instead of BN_free/BN_dup

This is not only simpler but also required by an upcoming change.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/regress/lib/libcrypto/bn/bn_test.c b/src/regress/lib/libcrypto/bn/bn_test.c
index 57068a10c1..a5fe58f55a 100644
--- a/src/regress/lib/libcrypto/bn/bn_test.c
+++ b/src/regress/lib/libcrypto/bn/bn_test.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: bn_test.c,v 1.7 2023/04/07 22:23:31 tb Exp $  */
+/*      $OpenBSD: bn_test.c,v 1.8 2023/04/07 22:25:09 tb Exp $  */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -1410,8 +1410,7 @@ test_mod_exp_mont5(BIO *bp, BN_CTX *ctx)
             "0000000000000000000000000000000000000000000000000000000000000000"
             "000000000000000000000000000000000000000000FFFFFFFFFFFFFF00000000");
         CHECK_GOTO(len);
-        BN_free(b);
-        CHECK_GOTO(b = BN_dup(a));
+        CHECK_GOTO(bn_copy(b, a));
         CHECK_GOTO(BN_MONT_CTX_set(mont, n, ctx));
         CHECK_GOTO(BN_mod_mul_montgomery(c, a, a, mont, ctx));
         CHECK_GOTO(BN_mod_mul_montgomery(d, a, b, mont, ctx));