Dear Che-liang Chiou,

In message <canjuy2kuhg+4kueeupj0pbefkjdhajjnt_8-vulxyuxh9oc...@mail.gmail.com> 
you wrote:
>
> >> +       ub_display_clear();
> >
> > What happens here if no display is available?
> 
> It is equivalent to a no-op. Or do you think we should print a warning
> message if no display is available?

Please either add an if() and don;t run the function at all, or add a
comment that explains that this callis harmless if no display is
present.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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