Commit 4e8090f1 authored by Mark Andrews's avatar Mark Andrews

test against unsigned zero

parent aaf3b236
......@@ -322,7 +322,7 @@ dst__openssl_toresult2(const char *funcname, isc_result_t fallback) {
"%s failed", funcname);
for (;;) {
err = ERR_get_error_line_data(&file, &line, &data, &flags);
if (err == 0)
if (err == 0U)
goto done;
ERR_error_string_n(err, buf, sizeof(buf));
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
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