lkml.org 
[lkml]   [2007]   [Mar]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: question on tty open and close
Date
From: Oliver Neukum [mailto:oliver@neukum.org] 
> Am Mittwoch, 28. März 2007 15:10 schrieb Stuart MacDonald:
> > > We find that a failure in open() leads to release_dev()
> being called.
> > > release_dev() calls close():
> > >
> > >       if (tty->driver->close)
> > >               tty->driver->close(tty, filp);
> > >
> > > So we have a file that's closed although open() never succeeded?
> >
> > That's correct! It's been a pain in my butt for years.
>
> How did you deal with that proctological issue?

Just make sure the close() handles the situation properly. It makes
reference counting... fun.

The serial driver has always handled it like this.

..Stu

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-03-28 15:27    [W:0.060 / U:0.520 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site