Remove unused y from ECDH key computation

ok jsing

1 files changed, 5 insertions, 5 deletions

diff --git a/src/lib/libcrypto/ecdh/ech_key.c b/src/lib/libcrypto/ecdh/ech_key.c
index e41092a411..1dfb3c0fa9 100644
--- a/src/lib/libcrypto/ecdh/ech_key.c
+++ b/src/lib/libcrypto/ecdh/ech_key.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ech_key.c,v 1.19 2023/06/25 19:35:56 tb Exp $ */
+/* $OpenBSD: ech_key.c,v 1.20 2023/07/01 14:39:34 tb Exp $ */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  *
@@ -94,7 +94,7 @@ ossl_ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
 {
         BN_CTX *ctx;
         EC_POINT *tmp = NULL;
-        BIGNUM *x = NULL, *y = NULL;
+        BIGNUM *x;
         const BIGNUM *priv_key;
         const EC_GROUP* group;
         int ret = -1;
@@ -109,11 +109,11 @@ ossl_ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
 
         if ((ctx = BN_CTX_new()) == NULL)
                 goto err;
+
         BN_CTX_start(ctx);
+
         if ((x = BN_CTX_get(ctx)) == NULL)
                 goto err;
-        if ((y = BN_CTX_get(ctx)) == NULL)
-                goto err;
 
         priv_key = EC_KEY_get0_private_key(ecdh);
         if (priv_key == NULL) {
@@ -136,7 +136,7 @@ ossl_ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
                 goto err;
         }
 
-        if (!EC_POINT_get_affine_coordinates(group, tmp, x, y, ctx)) {
+        if (!EC_POINT_get_affine_coordinates(group, tmp, x, NULL, ctx)) {
                 ECDHerror(ECDH_R_POINT_ARITHMETIC_FAILURE);
                 goto err;
         }