From d7086c6ecf1b9aa90f976f702bb5ebe979acd9b9 Mon Sep 17 00:00:00 2001
From: Fufu Fang <fangfufu2003@gmail.com>
Date: Thu, 2 Sep 2021 16:24:55 +0100
Subject: [PATCH] Now clear the link->cache_ptr after closing the cache

---
 src/cache.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cache.c b/src/cache.c
index 4bf588e..894125e 100644
--- a/src/cache.c
+++ b/src/cache.c
@@ -897,6 +897,8 @@ void Cache_close(Cache * cf)
         lprintf(error, "cannot close data file %s.\n", strerror(errno));
     }
 
+    cf->link->cache_ptr = NULL;
+
     lprintf(cache_lock_debug,
             "thread %x: unlocking cf_lock;\n", pthread_self());
     PTHREAD_MUTEX_UNLOCK(&cf_lock);