From 0979328fb1f7ab43c92b418bdb5111e1b828e301 Mon Sep 17 00:00:00 2001
From: Grissiom <chaos.proton@gmail.com>
Date: Sat, 29 Mar 2014 11:33:20 +0800
Subject: [PATCH] [msh] don't complain on empty command

Just branch out and no complain on command length == 0;
---
 components/finsh/msh.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/finsh/msh.c b/components/finsh/msh.c
index 354f88491..1492e017e 100644
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@@ -292,6 +292,9 @@ int msh_exec(char* cmd, rt_size_t length)
         length--;
     }
 
+    if (length == 0)
+        return 0;
+
     /* Exec sequence:
      * 1. built-in command
      * 2. module(if enabled)
-- 
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