From 4dc1b2b0cda79b3a517f2e192e7d9fe8c0363912 Mon Sep 17 00:00:00 2001
From: gogolovefish <64474767+gogolovefish@users.noreply.github.com>
Date: Fri, 11 Aug 2023 11:46:19 +0800
Subject: [PATCH] Update gzlog.c

fix memory leak
---
 deps/zlib/examples/gzlog.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/deps/zlib/examples/gzlog.c b/deps/zlib/examples/gzlog.c
index b8c29274e..d830ddf04 100644
--- a/deps/zlib/examples/gzlog.c
+++ b/deps/zlib/examples/gzlog.c
@@ -757,12 +757,15 @@ local int log_recover(struct log *log, int op)
             }
             if ((fd = open(log->path, O_RDONLY, 0)) < 0) {
                 log_log(log, op, ".add file read failure");
+                if (data != NULL)
+                    free(data);
                 return -1;
             }
             ret = (size_t)read(fd, data, len) != len;
             close(fd);
             if (ret) {
                 log_log(log, op, ".add file read failure");
+              
                 return -1;
             }
             log_log(log, op, "loaded .add file");