392     PROV_ECDSA_CTX *srcctx = (PROV_ECDSA_CTX *)vctx;  in ecdsa_dupctx()  local
398     dstctx = OPENSSL_zalloc(sizeof(*srcctx));  in ecdsa_dupctx()
402     *dstctx = *srcctx;  in ecdsa_dupctx()
408     if (srcctx->ec != NULL && !EC_KEY_up_ref(srcctx->ec))  in ecdsa_dupctx()
411     if (srcctx->kinv != NULL || srcctx->r != NULL)  in ecdsa_dupctx()
413     dstctx->ec = srcctx->ec;  in ecdsa_dupctx()
415     if (srcctx->md != NULL && !EVP_MD_up_ref(srcctx->md))  in ecdsa_dupctx()
417     dstctx->md = srcctx->md;  in ecdsa_dupctx()
419     if (srcctx->mdctx != NULL) {  in ecdsa_dupctx()
422                 || !EVP_MD_CTX_copy_ex(dstctx->mdctx, srcctx->mdctx))  in ecdsa_dupctx()
426     if (srcctx->propq != NULL) {  in ecdsa_dupctx()
427         dstctx->propq = OPENSSL_strdup(srcctx->propq);  in ecdsa_dupctx()