Fix return value variable type in tls_keypair_load_cert

ERR_peek_error() returns unsigned long.
Reported by github issue by @rozhuk-im.

ok bcook@ jsing@

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libtls/tls_keypair.c b/src/lib/libtls/tls_keypair.c
index a98e5c2e7e..78e9a08da0 100644
--- a/src/lib/libtls/tls_keypair.c
+++ b/src/lib/libtls/tls_keypair.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_keypair.c,v 1.6 2018/04/07 16:35:34 jsing Exp $ */
+/* $OpenBSD: tls_keypair.c,v 1.7 2020/12/15 08:47:45 inoguchi Exp $ */
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
  *
@@ -137,7 +137,7 @@ tls_keypair_load_cert(struct tls_keypair *keypair, struct tls_error *error,
 {
         char *errstr = "unknown";
         BIO *cert_bio = NULL;
-        int ssl_err;
+        unsigned long ssl_err;
         int rv = -1;
 
         X509_free(*cert);