[erlang-questions] Dialyzer warning about patterns

[Yash Ganthe]

Hi,
I have the following code:

Port = open_port({spawn,Args},[{packet,2}]),
    case is_port(Port) of
    true  ->
        io:format("~n ~p port created successfully ~n",[Port]),
        ok;
    false -> %%Line 52
        io:format("something went wrong ~n"),
        failed
    end.

Dialyzer gives the following warning:
mymod.erl:52: The pattern 'false' can never match the type 'true'

The possible results of is_port are true and false considering
is_port(Term) -> boolean()

What do I need to do to get rid of such warnings?

Thanks,
Yash

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