From e07e9f8491d9ab8b22d2bdf6a8aeba834dac7eef Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Thu, 9 Mar 2023 22:31:50 -0800
Subject: [PATCH] RJIT: Do nothing on jit_cont_free

if cont is NULL.
---
 cont.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cont.c b/cont.c
index d77bef39527661..4173e5a6b94f80 100644
--- a/cont.c
+++ b/cont.c
@@ -1255,6 +1255,8 @@ jit_cont_new(rb_execution_context_t *ec)
 static void
 jit_cont_free(struct rb_jit_cont *cont)
 {
+    if (!cont) return;
+
     rb_native_mutex_lock(&jit_cont_lock);
     if (cont == first_jit_cont) {
         first_jit_cont = cont->next;