Garbage collect the now unused len

diff --git a/lib/libcrypto/ecdh/ech_key.c b/lib/libcrypto/ecdh/ech_key.c
index f4d20cd..7d4fba7 100644 (file)
--- a/lib/libcrypto/ecdh/ech_key.c
+++ b/lib/libcrypto/ecdh/ech_key.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ech_key.c,v 1.25 2023/07/01 14:56:12 tb Exp $ */
+/* $OpenBSD: ech_key.c,v 1.26 2023/07/01 14:57:51 tb Exp $ */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  *
@@ -98,7 +98,7 @@ ossl_ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
        const BIGNUM *priv_key;
        const EC_GROUP* group;
        unsigned char *buf = NULL;
-       int buflen, len;
+       int buflen;
        int ret = -1;
 
        if (outlen > INT_MAX) {
@@ -141,9 +141,7 @@ ossl_ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
                goto err;
        }
 
-       buflen = ECDH_size(ecdh);
-       len = BN_num_bytes(x);
-       if (len > buflen) {
+       if ((buflen = ECDH_size(ecdh)) < BN_num_bytes(x)) {
                ECDHerror(ERR_R_INTERNAL_ERROR);
                goto err;
        }