3 files changed, 16 insertions, 8 deletions
diff --git a/lib/mnesia/src/mnesia_subscr.erl b/lib/mnesia/src/mnesia_subscr.erl
index 415c69d508..8f78dc55e8 100644
--- a/lib/mnesia/src/mnesia_subscr.erl
+++ b/lib/mnesia/src/mnesia_subscr.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -447,8 +447,12 @@ deactivate(ClientPid, What, Var, SubscrTab) ->
 	{'EXIT', _} ->
 	    unlink(ClientPid)
     end,
-    del_subscr(Var, What, ClientPid),
-    {ok, node()}.
+    try
+	del_subscr(Var, What, ClientPid),
+	{ok, node()}
+    catch _:_ ->
+	    {error, badarg}
+    end.
 
 del_subscr(subscribers, _What, Pid) ->
     mnesia_lib:del(subscribers, Pid);
diff --git a/lib/mnesia/test/mnesia_evil_coverage_test.erl b/lib/mnesia/test/mnesia_evil_coverage_test.erl
index 0df245b75d..db23a39943 100644
--- a/lib/mnesia/test/mnesia_evil_coverage_test.erl
+++ b/lib/mnesia/test/mnesia_evil_coverage_test.erl
@@ -1985,6 +1985,10 @@ subscribe_standard(Config) when is_list(Config)->
     ?match({atomic, ok}, mnesia:create_table(Tab, Def)),
 
     %% Check system events
+    ?match({error, {badarg, foo}}, mnesia:unsubscribe(foo)),
+    ?match({error, badarg}, mnesia:unsubscribe({table, foo})),
+    ?match(_, mnesia:unsubscribe(activity)),
+
     ?match({ok, N1}, mnesia:subscribe(system)),
     ?match({ok, N1}, mnesia:subscribe(activity)),
 
diff --git a/lib/mnesia/test/mnesia_isolation_test.erl b/lib/mnesia/test/mnesia_isolation_test.erl
index 3273bc4d40..d57f976d1f 100644
--- a/lib/mnesia/test/mnesia_isolation_test.erl
+++ b/lib/mnesia/test/mnesia_isolation_test.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -613,11 +613,11 @@ unbound2(Config) when is_list(Config) ->
     ?match_receive({B, continuing}),
 
     %% B should now be in lock queue.
-    A ! continue,    
-    ?match_receive({A, {atomic, ok}}),    
-    ?match_receive({B, {atomic, [{ul,{key,{17,42}},val}]}}),
+    A ! continue,
+    ?match_multi_receive([{A, {atomic, ok}},
+			  {B, {atomic, [{ul,{key,{17,42}},val}]}}]),
     ok.
-    
+
 receiver() ->
     receive 
 	{_Pid, begin_trans} ->