[Fwd: [PATCH] glibc-2.2.5 utmp_file locking and locking question]

[Roland McGrath]

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> Roland McGrath wrote:
> 
> > The only possible error should be EINTR.  But it does seem reasonable to
> > check for it.  Hmm, actually ENOLCK and EDEADLK might be possible too.
> > 
> > Does anyone know a reason to ignore the fcntl result?
> 
> No reason but that it seemed unnecessary.

They may be obscure and vanishingly rare, but there are cases that could fail.
I have put the checks in.