From 7583ebb1b271e7cb8e44f8211d02bd719d4a4bd1 Mon Sep 17 00:00:00 2001
From: michael-grunder <michael.grunder@gmail.com>
Date: Wed, 9 Nov 2022 18:20:15 -0800
Subject: [PATCH] Make freeing a NULL redisAsyncContext a no op.

This makes our behavior consistent with redisFree and freeReplyObject.
---
 async.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/async.c b/async.c
index d7feba36c..f82f567f8 100644
--- a/async.c
+++ b/async.c
@@ -413,7 +413,11 @@ static void __redisAsyncFree(redisAsyncContext *ac) {
  * free'ing. To do so, a flag is set on the context which is picked up by
  * redisProcessCallbacks(). Otherwise, the context is immediately free'd. */
 void redisAsyncFree(redisAsyncContext *ac) {
+    if (ac == NULL)
+        return;
+
     redisContext *c = &(ac->c);
+
     c->flags |= REDIS_FREEING;
     if (!(c->flags & REDIS_IN_CALLBACK))
         __redisAsyncFree(ac);