File 1432-snmp-example-ex2-Corrected-various-dialyzer-issues.patch of Package erlang

From 84da3f725de460f41aefc6dfc0a1020b0275c389 Mon Sep 17 00:00:00 2001
From: Micael Karlberg <bmk@erlang.org>
Date: Tue, 12 Jul 2022 18:46:52 +0200
Subject: [PATCH 2/3] [snmp|example|ex2] Corrected various dialyzer issues

OTP-18180
---
 lib/snmp/examples/ex2/snmp_ex2_manager.erl    | 13 ++----
 .../ex2/snmp_ex2_simple_standard_test.erl     | 44 +++++++++----------
 2 files changed, 25 insertions(+), 32 deletions(-)

diff --git a/lib/snmp/examples/ex2/snmp_ex2_manager.erl b/lib/snmp/examples/ex2/snmp_ex2_manager.erl
index b3faa54a15..d5e17f8696 100644
--- a/lib/snmp/examples/ex2/snmp_ex2_manager.erl
+++ b/lib/snmp/examples/ex2/snmp_ex2_manager.erl
@@ -133,12 +133,7 @@ write_config(Dir, Conf) ->
     end.
 
 start_manager(Opts) ->
-    case snmpm:start_link(Opts) of
-	ok ->
-	    ok; 
-	Error ->
-	    error({failed_starting_manager, Error})
-    end.
+    ok = snmpm:start_link(Opts).
 
 register_user() ->
     case snmpm:register_user(?USER, ?USER_MOD, self()) of
@@ -397,16 +392,16 @@ handle_pdu(TargetName, ReqId, SnmpResponse, Server) when is_pid(Server) ->
 
 handle_trap(TargetName, SnmpTrap, Server) when is_pid(Server) ->
     report_callback(Server, handle_trap, {TargetName, SnmpTrap}),
-    ok.
+    ignore.
 
 handle_inform(TargetName, SnmpInform, Server) when is_pid(Server) ->
     report_callback(Server, handle_inform, {TargetName, SnmpInform}),
-    ok.
+    ignore.
 
 
 handle_report(TargetName, SnmpReport, Server) when is_pid(Server) ->
     report_callback(Server, handle_inform, {TargetName, SnmpReport}),
-    ok.
+    ignore.
 
 handle_invalid_result(In, Out, Server) when is_pid(Server) ->
     report_callback(Server, handle_invalid_result, {In, Out}),
diff --git a/lib/snmp/examples/ex2/snmp_ex2_simple_standard_test.erl b/lib/snmp/examples/ex2/snmp_ex2_simple_standard_test.erl
index e8f748c337..7439f36416 100644
--- a/lib/snmp/examples/ex2/snmp_ex2_simple_standard_test.erl
+++ b/lib/snmp/examples/ex2/snmp_ex2_simple_standard_test.erl
@@ -246,34 +246,32 @@ verify_vbs([Vb|T], NameAndTypes, Acc) ->
     Acc2 = lists:flatten(io_lib:format("~s~n   ~s", [Acc, Val])),
     verify_vbs(T, NameAndTypes, Acc2).
 
-verify_vb(#varbind{oid = Oid, variabletype = Type, value = Val} = Vb, 
-	  NameAndTypes) ->
+verify_vb(#varbind{oid = Oid} = Vb, NameAndTypes) ->
     case lists:reverse(Oid) of
 	[0|RevOid] ->
-	    case snmp_ex2_manager:oid_to_name(lists:reverse(RevOid)) of
-		{ok, Name} ->
-		    case lists:keysearch(Name, 1, NameAndTypes) of
-			{value, {Name, Type}} ->
-			    Val;
-			{value, {Name, WrongType}} ->
-			    error({wrong_type, {WrongType, Vb}});
-			false ->
-			    error({unexpected_name, {Name, Vb}})
-		    end;
-		{error, Reason} ->
-		    error({unexpected_oid, {Reason, Vb}})
-	    end;
+            verify_vb_value(lists:reverse(RevOid), Vb, NameAndTypes);
 	_ ->
-	    case lists:keysearch(Oid, 1, NameAndTypes) of
-		{value, {Oid, Type}} ->
-		    Val;
-		{value, {Oid, WrongType}} ->
-		    error({wrong_type, {WrongType, Vb}});
-		false ->
-		    error({unexpected_oid, Vb})
-	    end
+            verify_vb_value(Oid, Vb, NameAndTypes)
     end.
 
+verify_vb_value(Oid,
+                #varbind{variabletype = Type, value = Val} = Vb,
+                NameAndTypes) ->
+    case snmp_ex2_manager:oid_to_name(Oid) of
+        {ok, Name} ->
+            case lists:keysearch(Name, 1, NameAndTypes) of
+                {value, {Name, Type}} ->
+                    Val;
+                {value, {Name, WrongType}} ->
+                    error({wrong_type, {WrongType, Vb}});
+                false ->
+                    error({unexpected_name, {Name, Vb}})
+            end;
+        {error, Reason} ->
+            error({unexpected_oid, {Reason, Vb}})
+    end.
+    
+
 
 std_mib(MibName) ->
     j(std_dir(), MibName).
-- 
2.35.3