From deacaf7c53106146d08cbd96687e653f868b437b Mon Sep 17 00:00:00 2001
From: denpamusic <denpa@netfleet.space>
Date: Wed, 23 Oct 2019 11:14:37 +0300
Subject: [PATCH] [Minor] Skip cache on missing data

---
 lualib/lua_scanners/p0f.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lualib/lua_scanners/p0f.lua b/lualib/lua_scanners/p0f.lua
index b27a42ef6..056c0ad8b 100644
--- a/lualib/lua_scanners/p0f.lua
+++ b/lualib/lua_scanners/p0f.lua
@@ -117,7 +117,7 @@ local function p0f_check(task, ip, rule)
 
       data = parse_p0f_response(data)
 
-      if rule.redis_params then
+      if rule.redis_params and data then
         local key = rule.prefix .. ip:to_string()
         local ret = lua_redis.redis_make_request(task,
           rule.redis_params,
-- 
2.39.5