From 9a1154cb9c038921d118f576c691c823ca32995d Mon Sep 17 00:00:00 2001
From: licunlong <licunlong1@huawei.com>
Date: Fri, 14 Jul 2023 15:46:21 +0800
Subject: [PATCH] fix: check if the words is empty before using it

---
 core/sysmaster/unit/rentry.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/sysmaster/unit/rentry.rs b/core/sysmaster/unit/rentry.rs
index 312347e..5d7360c 100644
--- a/core/sysmaster/unit/rentry.rs
+++ b/core/sysmaster/unit/rentry.rs
@@ -30,6 +30,9 @@ use sysmaster::unit::{UnitRelations, UnitType};
 
 pub(crate) fn unit_name_to_type(unit_name: &str) -> UnitType {
     let words: Vec<&str> = unit_name.split('.').collect();
+    if words.is_empty() {
+        return UnitType::UnitTypeInvalid;
+    }
     UnitType::from_str(words[words.len() - 1]).unwrap_or(UnitType::UnitTypeInvalid)
 }
 
-- 
2.33.0