From b29154673e3bf5f0997e98ac20518ef9f874216e Mon Sep 17 00:00:00 2001
From: loogg <2544047213@qq.com>
Date: Wed, 29 May 2019 20:14:53 +0800
Subject: [PATCH 1/2] Update shell.c

---
 components/finsh/shell.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/finsh/shell.c b/components/finsh/shell.c
index 53dcd11c66..98a63bdbbf 100644
--- a/components/finsh/shell.c
+++ b/components/finsh/shell.c
@@ -309,8 +309,8 @@ static void finsh_wait_auth(void)
                 else if (ch == '\b' && cur_pos > 0)
                 {
                     /* backspace */
+		    cur_pos--;
                     password[cur_pos] = '\0';
-                    cur_pos--;
                     rt_kprintf("\b \b");
                 }
                 else if (ch == '\r' || ch == '\n')

From 52d1e51e3e4e25fcf8460af0bc65532ed647321c Mon Sep 17 00:00:00 2001
From: loogg <2544047213@qq.com>
Date: Wed, 29 May 2019 20:34:03 +0800
Subject: [PATCH 2/2] Update shell.c

---
 components/finsh/shell.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/finsh/shell.c b/components/finsh/shell.c
index 98a63bdbbf..3a02e24c2e 100644
--- a/components/finsh/shell.c
+++ b/components/finsh/shell.c
@@ -309,7 +309,7 @@ static void finsh_wait_auth(void)
                 else if (ch == '\b' && cur_pos > 0)
                 {
                     /* backspace */
-		    cur_pos--;
+                    cur_pos--;
                     password[cur_pos] = '\0';
                     rt_kprintf("\b \b");
                 }