From d3735567a7e778a4216b6499693f91af4e158bd6 Mon Sep 17 00:00:00 2001
From: David Robakowski <david.robakowski@synlay.com>
Date: Tue, 17 Dec 2013 17:11:46 +0100
Subject: [PATCH 1/2] Internal cancel return type tweak and deletion of unused
 code

---
 src/ecrn_app.erl     | 4 +---
 src/ecrn_control.erl | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/ecrn_app.erl b/src/ecrn_app.erl
index 3d8a948..b163d6a 100644
--- a/src/ecrn_app.erl
+++ b/src/ecrn_app.erl
@@ -57,7 +57,5 @@ setup() ->
                 erlcron:cron(CronJob) 
             end, Crontab);
         undefined ->
-            ok;
-        Reason ->
-            error_logger:error_msg("Unknown crontab in configfile: ~p~n", [Reason])
+            ok
     end.
diff --git a/src/ecrn_control.erl b/src/ecrn_control.erl
index 944428a..2b8ce60 100644
--- a/src/ecrn_control.erl
+++ b/src/ecrn_control.erl
@@ -112,5 +112,5 @@ internal_cancel(AlarmRef) ->
         undefined ->
             undefined;
         {ok, [Pid]} ->
-            {ok, ecrn_agent:cancel(Pid)}
+            ecrn_agent:cancel(Pid)
     end.

From 61eb30d8e7f5f9d91f5af6d7a4ac18da64865dd4 Mon Sep 17 00:00:00 2001
From: David Robakowski <david.robakowski@synlay.com>
Date: Wed, 18 Dec 2013 17:47:36 +0100
Subject: [PATCH 2/2] Spec tweaks for erlcron:cancel/1

---
 src/ecrn_control.erl | 2 +-
 src/erlcron.erl      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ecrn_control.erl b/src/ecrn_control.erl
index 2b8ce60..a90d8a8 100644
--- a/src/ecrn_control.erl
+++ b/src/ecrn_control.erl
@@ -35,7 +35,7 @@
 start_link() ->
     gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
 
--spec cancel/1 :: (erlcron:job_ref()) -> ok.
+-spec cancel/1 :: (erlcron:job_ref()) -> ok | undefined.
 cancel(AlarmRef) ->
     gen_server:call(?SERVER, {cancel, AlarmRef}).
 
diff --git a/src/erlcron.erl b/src/erlcron.erl
index 7b8ab51..5df40dd 100644
--- a/src/erlcron.erl
+++ b/src/erlcron.erl
@@ -90,7 +90,7 @@ once(When, Fun) ->
 
 %% @doc
 %% Cancel the job specified by the jobref.
--spec cancel/1 :: (job_ref()) -> ok.
+-spec cancel/1 :: (job_ref()) -> ok | undefined.
 cancel(JobRef) ->
     ecrn_control:cancel(JobRef).