From 034496c83ebabcd1e32f9fd497edda4909553e30 Mon Sep 17 00:00:00 2001
From: Glacierty <glacier_ty@163.com>
Date: Tue, 17 Aug 2021 19:34:18 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E9=AB=98=E9=93=BE=E8=A1=A8=E5=88=A0?=
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如果不加这一语句，那删除需要遍历整个链表，直到找到尾指针才会退出，虽然时间固定，但是降低了效率，加一个return；可以解决这个问题
---
 multi_button.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/multi_button.c b/multi_button.c
index 1b24854..ff16515 100644
--- a/multi_button.c
+++ b/multi_button.c
@@ -179,6 +179,7 @@ void button_stop(struct Button* handle)
 		if (entry == handle) {
 			*curr = entry->next;
 //			free(entry);
+			return;
 		} else
 			curr = &entry->next;
 	}