From 6e5fcc26742ca7ae3bdd4249c15e87b8667609fc Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Thu, 7 Feb 2013 14:46:08 +0100
Subject: [stdlib] Fix a bug that could cause the Erlang shell to loop

---
 lib/stdlib/src/shell.erl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/stdlib/src')

diff --git a/lib/stdlib/src/shell.erl b/lib/stdlib/src/shell.erl
index 203d2a4f76..0cd408204e 100644
--- a/lib/stdlib/src/shell.erl
+++ b/lib/stdlib/src/shell.erl
@@ -185,7 +185,7 @@ server(StartSync) ->
     %% Check if we're in user restricted mode.
     RShErr = 
 	case application:get_env(stdlib, restricted_shell) of
-	    {ok,RShMod} ->
+	    {ok,RShMod} when is_atom(RShMod) ->
 		io:fwrite(<<"Restricted ">>, []),
 		case code:ensure_loaded(RShMod) of
 		    {module,RShMod} -> 
@@ -193,6 +193,8 @@ server(StartSync) ->
 		    {error,What} ->
 			{RShMod,What}
 		end;
+            {ok, Term} ->
+                {Term,not_an_atom};
 	    undefined ->
 		undefined
 	end,
-- 
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