From 8dc89ce4237fc5ffeccac37a0e5a883adb1514f5 Mon Sep 17 00:00:00 2001
From: Roman Khapov <r.khapov@yandex.ru>
Date: Tue, 10 Dec 2024 15:05:05 +0500
Subject: [PATCH] machinarium/sources/tls.c: fix SIGSEGV (#725)

mm_tls_read can have io without on_read

Signed-off-by: rkhapov <r.khapov@ya.ru>
Co-authored-by: rkhapov <r.khapov@ya.ru>
---
 third_party/machinarium/sources/tls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/third_party/machinarium/sources/tls.c b/third_party/machinarium/sources/tls.c
index 5cdc5c60..117a2d5b 100644
--- a/third_party/machinarium/sources/tls.c
+++ b/third_party/machinarium/sources/tls.c
@@ -810,7 +810,7 @@ int mm_tls_read(mm_io_t *io, char *buf, int size)
 	int rc;
 	rc = SSL_read(io->tls_ssl, buf, size);
 	if (rc > 0) {
-		if (mm_tls_read_pending(io)) {
+		if (io->on_read != NULL && mm_tls_read_pending(io)) {
 			mm_cond_signal((mm_cond_t *)io->on_read,
 				       &mm_self->scheduler);
 		}