From 764838d66fabaf4c866b2f674625ee3486098765 Mon Sep 17 00:00:00 2001
From: Binbin <binloveplay1314@qq.com>
Date: Tue, 5 Dec 2023 02:12:48 +0800
Subject: [PATCH] Check whether the client is NULL in luaCreateFunction
 (#12829)

It was first added to load lua from RDB, see 28dfdca7. After #9812,
we no longer save lua in RDB. luaCreateFunction will only be called
in script load and eval*, both of which are available in the client.

It could be that that some day we'll still want to load scripts from
somewhere that's not a client. This fix is in dead code.
---
 src/eval.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/eval.c b/src/eval.c
index eb4b52936..47989a0ac 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -436,7 +436,9 @@ sds luaCreateFunction(client *c, robj *body) {
     ssize_t shebang_len = 0;
     sds err = NULL;
     if (evalExtractShebangFlags(body->ptr, &script_flags, &shebang_len, &err) == C_ERR) {
-        addReplyErrorSds(c, err);
+        if (c != NULL) {
+            addReplyErrorSds(c, err);
+        }
         return NULL;
     }