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authorSiri Hansen <[email protected]>2013-04-25 16:14:10 +0200
committerHans Bolinder <[email protected]>2013-05-06 12:14:13 +0200
commitf52452309cf68da898a1768eb6e8b6767e602bc7 (patch)
treec24a32ecedfd7f4baaa3c8f4e9e474a7dbef738b /lib/kernel
parent88eea0e9a22099a1425553381cfb72f646cb2abf (diff)
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Fix unmatched_return warnings in kernel
Diffstat (limited to 'lib/kernel')
-rw-r--r--lib/kernel/src/dist_ac.erl32
-rw-r--r--lib/kernel/src/erl_boot_server.erl15
-rw-r--r--lib/kernel/src/erl_epmd.erl39
-rw-r--r--lib/kernel/src/erl_reply.erl4
-rw-r--r--lib/kernel/src/global.erl2
-rw-r--r--lib/kernel/src/hipe_unified_loader.erl6
-rw-r--r--lib/kernel/src/inet_res.erl25
-rw-r--r--lib/kernel/src/kernel_config.erl6
-rw-r--r--lib/kernel/src/net_adm.erl6
-rw-r--r--lib/kernel/src/net_kernel.erl17
-rw-r--r--lib/kernel/src/pg2.erl2
-rw-r--r--lib/kernel/src/seq_trace.erl4
12 files changed, 94 insertions, 64 deletions
diff --git a/lib/kernel/src/dist_ac.erl b/lib/kernel/src/dist_ac.erl
index 98b9e20007..a4d4ae386c 100644
--- a/lib/kernel/src/dist_ac.erl
+++ b/lib/kernel/src/dist_ac.erl
@@ -283,7 +283,7 @@ handle_cast(init_sync, _S) ->
KernelConfig ! dist_ac_took_control,
%% we're really just interested in nodedowns.
- net_kernel:monitor_nodes(true),
+ ok = net_kernel:monitor_nodes(true),
{Known, NAppls, RStarted} = sync_dacs(Appls),
@@ -812,21 +812,21 @@ start_appl(AppName, S, Type) ->
start_distributed(Appl, Name, Nodes, PermittedNodes, S, Type) ->
case find_start_node(Nodes, PermittedNodes, Name, S) of
{ok, Node} when Node =:= node() ->
- case Appl#appl.id of
- {failover, FoNode} when Type =:= req ->
- _ = ac_failover(Name, FoNode, undefined);
- {distributed, Node2} when Type =:= req ->
- _ = ac_takeover(req, Name, Node2, undefined);
- _ when Type =:= reply ->
- case lists:keysearch(Name, 2, S#state.remote_started) of
- {value, {Node3, _}} ->
- _ = ac_takeover(reply, Name, Node3, undefined);
- _ ->
- _ = ac_start_it(Type, Name)
- end;
- _ ->
- _ = ac_start_it(Type, Name)
- end,
+ _ = case Appl#appl.id of
+ {failover, FoNode} when Type =:= req ->
+ ac_failover(Name, FoNode, undefined);
+ {distributed, Node2} when Type =:= req ->
+ ac_takeover(req, Name, Node2, undefined);
+ _ when Type =:= reply ->
+ case lists:keysearch(Name, 2, S#state.remote_started) of
+ {value, {Node3, _}} ->
+ ac_takeover(reply, Name, Node3, undefined);
+ _ ->
+ ac_start_it(Type, Name)
+ end;
+ _ ->
+ ac_start_it(Type, Name)
+ end,
{run_waiting, true};
{already_started, Node} ->
_ = ac_started(Type, Name, Node),
diff --git a/lib/kernel/src/erl_boot_server.erl b/lib/kernel/src/erl_boot_server.erl
index 33f1b96f8d..9a49655a9f 100644
--- a/lib/kernel/src/erl_boot_server.erl
+++ b/lib/kernel/src/erl_boot_server.erl
@@ -361,7 +361,14 @@ handle_command(S, PS, Msg) ->
end.
send_file_result(S, Cmd, Result) ->
- gen_tcp:send(S, term_to_binary({Cmd,Result})).
-
-send_result(S, Result) ->
- gen_tcp:send(S, term_to_binary(Result)).
+ send_result(S, {Cmd,Result}).
+
+send_result(S, Term) ->
+ case gen_tcp:send(S, term_to_binary(Term)) of
+ ok ->
+ ok;
+ Error ->
+ error_logger:error_msg("** Boot server could not send result "
+ "to socket: ~w** ~n", [Error]),
+ ok
+ end.
diff --git a/lib/kernel/src/erl_epmd.erl b/lib/kernel/src/erl_epmd.erl
index 0b97559ec2..b4fae24ef3 100644
--- a/lib/kernel/src/erl_epmd.erl
+++ b/lib/kernel/src/erl_epmd.erl
@@ -300,8 +300,14 @@ get_port(Node, EpmdAddress, Timeout) ->
{ok, Socket} ->
Name = to_string(Node),
Len = 1+length(Name),
- gen_tcp:send(Socket, [?int16(Len),?EPMD_PORT_PLEASE2_REQ, Name]),
- wait_for_port_reply(Socket, []);
+ Msg = [?int16(Len),?EPMD_PORT_PLEASE2_REQ,Name],
+ case gen_tcp:send(Socket, Msg) of
+ ok ->
+ wait_for_port_reply(Socket, []);
+ _Error ->
+ ?port_please_failure2(_Error),
+ noport
+ end;
_Error ->
?port_please_failure2(_Error),
noport
@@ -430,19 +436,24 @@ get_names(EpmdAddress) ->
end.
do_get_names(Socket) ->
- gen_tcp:send(Socket, [?int16(1),?EPMD_NAMES]),
- receive
- {tcp, Socket, [P0,P1,P2,P3|T]} ->
- EpmdPort = ?u32(P0,P1,P2,P3),
- case get_epmd_port() of
- EpmdPort ->
- names_loop(Socket, T, []);
- _ ->
- close(Socket),
- {error, address}
+ case gen_tcp:send(Socket, [?int16(1),?EPMD_NAMES]) of
+ ok ->
+ receive
+ {tcp, Socket, [P0,P1,P2,P3|T]} ->
+ EpmdPort = ?u32(P0,P1,P2,P3),
+ case get_epmd_port() of
+ EpmdPort ->
+ names_loop(Socket, T, []);
+ _ ->
+ close(Socket),
+ {error, address}
+ end;
+ {tcp_closed, Socket} ->
+ {ok, []}
end;
- {tcp_closed, Socket} ->
- {ok, []}
+ _ ->
+ close(Socket),
+ {error, address}
end.
names_loop(Socket, Acc, Ps) ->
diff --git a/lib/kernel/src/erl_reply.erl b/lib/kernel/src/erl_reply.erl
index 1a61e630bc..f0be3ee654 100644
--- a/lib/kernel/src/erl_reply.erl
+++ b/lib/kernel/src/erl_reply.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2009. 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
@@ -32,7 +32,7 @@ reply([Addr,Port,Msg]) ->
P = list_to_integer(atom_to_list(Port)),
M = atom_to_list(Msg),
{ok, S} = gen_tcp:connect(Ip,P,[]),
- gen_tcp:send(S,M),
+ ok = gen_tcp:send(S,M),
gen_tcp:close(S),
reply_done;
reply(_) ->
diff --git a/lib/kernel/src/global.erl b/lib/kernel/src/global.erl
index 3f672c099b..ef878b8d0c 100644
--- a/lib/kernel/src/global.erl
+++ b/lib/kernel/src/global.erl
@@ -2069,7 +2069,7 @@ random_sleep(Times) ->
case get(random_seed) of
undefined ->
{A1, A2, A3} = now(),
- random:seed(A1, A2, A3 + erlang:phash(node(), 100000)),
+ _ = random:seed(A1, A2, A3 + erlang:phash(node(), 100000)),
ok;
_ -> ok
end,
diff --git a/lib/kernel/src/hipe_unified_loader.erl b/lib/kernel/src/hipe_unified_loader.erl
index e676ca997d..cc51b5ae07 100644
--- a/lib/kernel/src/hipe_unified_loader.erl
+++ b/lib/kernel/src/hipe_unified_loader.erl
@@ -226,14 +226,16 @@ load_common(Mod, Bin, Beam, OldReferencesToPatch) ->
%% (patches the BEAM code to redirect to native.)
case Beam of
[] ->
- export_funs(Addresses);
+ export_funs(Addresses),
+ ok;
BeamBinary when is_binary(BeamBinary) ->
%% Find all closures in the code.
ClosurePatches = find_closure_patches(Refs),
AddressesOfClosuresToPatch =
calculate_addresses(ClosurePatches, CodeAddress, Addresses),
export_funs(Addresses),
- export_funs(Mod, BeamBinary, Addresses, AddressesOfClosuresToPatch)
+ export_funs(Mod, BeamBinary, Addresses, AddressesOfClosuresToPatch),
+ ok
end,
%% Redirect references to the old module to the new module's BEAM stub.
patch_to_emu_step2(OldReferencesToPatch),
diff --git a/lib/kernel/src/inet_res.erl b/lib/kernel/src/inet_res.erl
index 1a30979126..ab9cbf0617 100644
--- a/lib/kernel/src/inet_res.erl
+++ b/lib/kernel/src/inet_res.erl
@@ -921,18 +921,25 @@ query_tcp(Timeout, Id, Buffer, IP, Port, Verbose) ->
[{active,false},{packet,2},binary,Family],
Timeout) of
{ok, S} ->
- gen_tcp:send(S, Buffer),
- case gen_tcp:recv(S, 0, Timeout) of
- {ok, Answer} ->
- gen_tcp:close(S),
- case decode_answer(Answer, Id, Verbose) of
- {ok, _} = OK -> OK;
- {error, badid} -> {error, servfail};
- Error -> Error
+ case gen_tcp:send(S, Buffer) of
+ ok ->
+ case gen_tcp:recv(S, 0, Timeout) of
+ {ok, Answer} ->
+ gen_tcp:close(S),
+ case decode_answer(Answer, Id, Verbose) of
+ {ok, _} = OK -> OK;
+ {error, badid} -> {error, servfail};
+ Error -> Error
+ end;
+ Error ->
+ gen_tcp:close(S),
+ ?verbose(Verbose, "TCP server recv error: ~p\n",
+ [Error]),
+ Error
end;
Error ->
gen_tcp:close(S),
- ?verbose(Verbose, "TCP server recv error: ~p\n",
+ ?verbose(Verbose, "TCP server send error: ~p\n",
[Error]),
Error
end;
diff --git a/lib/kernel/src/kernel_config.erl b/lib/kernel/src/kernel_config.erl
index 48141cfa03..56defcb167 100644
--- a/lib/kernel/src/kernel_config.erl
+++ b/lib/kernel/src/kernel_config.erl
@@ -121,7 +121,7 @@ send_timeout(Timeout, Pid) ->
end.
wait_nodes(Mandatory, Optional) ->
- net_kernel:monitor_nodes(true),
+ ok = net_kernel:monitor_nodes(true),
lists:foreach(fun(Node) ->
case net_adm:ping(Node) of
pong -> self() ! {nodeup, Node};
@@ -129,7 +129,9 @@ wait_nodes(Mandatory, Optional) ->
end
end,
Mandatory ++ Optional),
- rec_nodes(Mandatory, Optional).
+ R = rec_nodes(Mandatory, Optional),
+ ok = net_kernel:monitor_nodes(false),
+ R.
rec_nodes([], []) -> ok;
rec_nodes(Mandatory, Optional) ->
diff --git a/lib/kernel/src/net_adm.erl b/lib/kernel/src/net_adm.erl
index 9b2dac9544..3f5eac7822 100644
--- a/lib/kernel/src/net_adm.erl
+++ b/lib/kernel/src/net_adm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. 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
@@ -133,7 +133,7 @@ dns_hostname(Hostname) ->
-spec ping_list([atom()]) -> [atom()].
ping_list(Nodelist) ->
- net_kernel:monitor_nodes(true),
+ ok = net_kernel:monitor_nodes(true),
Sofar = ping_first(Nodelist, nodes()),
collect_new(Sofar, Nodelist).
@@ -159,7 +159,7 @@ collect_new(Sofar, Nodelist) ->
collect_new([Node | Sofar], Nodelist)
end
after 3000 ->
- net_kernel:monitor_nodes(false),
+ ok = net_kernel:monitor_nodes(false),
Sofar
end.
diff --git a/lib/kernel/src/net_kernel.erl b/lib/kernel/src/net_kernel.erl
index 0c70e5f125..04a0d94ebf 100644
--- a/lib/kernel/src/net_kernel.erl
+++ b/lib/kernel/src/net_kernel.erl
@@ -306,20 +306,20 @@ do_connect(Node, Type, WaitForBarred) -> %% Type = normal | hidden
end.
passive_connect_monitor(Parent, Node) ->
- monitor_nodes(true,[{node_type,all}]),
+ ok = monitor_nodes(true,[{node_type,all}]),
case lists:member(Node,nodes([connected])) of
true ->
- monitor_nodes(false,[{node_type,all}]),
+ ok = monitor_nodes(false,[{node_type,all}]),
Parent ! {self(),true};
_ ->
Ref = make_ref(),
Tref = erlang:send_after(connecttime(),self(),Ref),
receive
Ref ->
- monitor_nodes(false,[{node_type,all}]),
+ ok = monitor_nodes(false,[{node_type,all}]),
Parent ! {self(), false};
{nodeup,Node,_} ->
- monitor_nodes(false,[{node_type,all}]),
+ ok = monitor_nodes(false,[{node_type,all}]),
_ = erlang:cancel_timer(Tref),
Parent ! {self(),true}
end
@@ -734,7 +734,7 @@ handle_info(transition_period_end,
how = How}} = State) ->
?tckr_dbg(transition_period_ended),
case How of
- shorter -> Tckr ! {new_ticktime, T};
+ shorter -> Tckr ! {new_ticktime, T}, done;
_ -> done
end,
{noreply,State#state{tick = #tick{ticker = Tckr, time = T}}};
@@ -1573,9 +1573,10 @@ async_gen_server_reply(From, Msg) ->
ok ->
ok;
nosuspend ->
- spawn(fun() -> catch erlang:send(Pid, M, [noconnect]) end);
+ _ = spawn(fun() -> catch erlang:send(Pid, M, [noconnect]) end),
+ ok;
noconnect ->
ok; % The gen module takes care of this case.
- {'EXIT', _}=EXIT ->
- EXIT
+ {'EXIT', _} ->
+ ok
end.
diff --git a/lib/kernel/src/pg2.erl b/lib/kernel/src/pg2.erl
index 2cfbcc9189..b562d4ffd2 100644
--- a/lib/kernel/src/pg2.erl
+++ b/lib/kernel/src/pg2.erl
@@ -165,7 +165,7 @@ get_closest_pid(Name) ->
init([]) ->
Ns = nodes(),
- net_kernel:monitor_nodes(true),
+ ok = net_kernel:monitor_nodes(true),
lists:foreach(fun(N) ->
{?MODULE, N} ! {new_pg2, node()},
self() ! {nodeup, N}
diff --git a/lib/kernel/src/seq_trace.erl b/lib/kernel/src/seq_trace.erl
index a90b7b07c8..38a61f4644 100644
--- a/lib/kernel/src/seq_trace.erl
+++ b/lib/kernel/src/seq_trace.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1998-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2013. 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
@@ -125,7 +125,7 @@ get_system_tracer() ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
set_token2([{Type,Val}|T]) ->
- erlang:seq_trace(Type, Val),
+ _ = erlang:seq_trace(Type, Val),
set_token2(T);
set_token2([]) ->
ok.