libtls: use TLS_ERROR_OUT_OF_MEMORY after malloc failure

tls_config_load_file() hat a spot that used TLS_ERROR_UNKNOWN, so switch
that to the usual error code. Use tls_error_setx() since strerror(ENOMEM)
adds nothing.

From Michael Forney

ok bcook

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libtls/tls_config.c b/src/lib/libtls/tls_config.c
index 848117a91a..d35c5065c5 100644
--- a/src/lib/libtls/tls_config.c
+++ b/src/lib/libtls/tls_config.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_config.c,v 1.72 2026/03/10 05:26:04 deraadt Exp $ */
+/* $OpenBSD: tls_config.c,v 1.73 2026/04/16 07:33:11 tb Exp $ */
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
  *
@@ -65,7 +65,7 @@ tls_config_load_file(struct tls_error *error, const char *filetype,
                 goto err;
         *len = (size_t)st.st_size;
         if ((*buf = malloc(*len)) == NULL) {
-                tls_error_set(error, TLS_ERROR_UNKNOWN,
+                tls_error_setx(error, TLS_ERROR_OUT_OF_MEMORY,
                     "failed to allocate buffer for %s file",
                     filetype);
                 goto err;