bn_mod_exp_ret() fix stupid logic error

1 files changed, 5 insertions, 4 deletions

diff --git a/src/regress/lib/libcrypto/bn/bn_mod_exp.c b/src/regress/lib/libcrypto/bn/bn_mod_exp.c
index 67445c37b3..7009a6096a 100644
--- a/src/regress/lib/libcrypto/bn/bn_mod_exp.c
+++ b/src/regress/lib/libcrypto/bn/bn_mod_exp.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: bn_mod_exp.c,v 1.15 2023/03/18 13:04:02 tb Exp $ */
+/*      $OpenBSD: bn_mod_exp.c,v 1.16 2023/03/26 14:50:23 tb Exp $ */
 
 /*
  * Copyright (c) 2022,2023 Theo Buehler <tb@openbsd.org>
@@ -282,6 +282,7 @@ test_mod_exp(const BIGNUM *want, const BIGNUM *a, const BIGNUM *p,
     const BIGNUM *m, BN_CTX *ctx, const struct mod_exp_test *test)
 {
         BIGNUM *got;
+        int mod_exp_ret;
         int ret = 0;
 
         BN_CTX_start(ctx);
@@ -290,11 +291,11 @@ test_mod_exp(const BIGNUM *want, const BIGNUM *a, const BIGNUM *p,
                 goto err;
 
         if (test->mod_exp_fn != NULL)
-                ret = test->mod_exp_fn(got, a, p, m, ctx);
+                mod_exp_ret = test->mod_exp_fn(got, a, p, m, ctx);
         else
-                ret = test->mod_exp_mont_fn(got, a, p, m, ctx, NULL);
+                mod_exp_ret = test->mod_exp_mont_fn(got, a, p, m, ctx, NULL);
 
-        if (!ret)
+        if (!mod_exp_ret)
                 errx(1, "%s() failed", test->name);
 
         if (BN_cmp(want, got) != 0) {