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From: Ed Schouten <ed@FreeBSD.org>
Date: Wed, 12 Nov 2008 09:04:44 +0000 (UTC)
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Subject: cvs commit: src/sys/kern tty_ttydisc.c
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ed          2008-11-12 09:04:44 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             tty_ttydisc.c 
  Log:
  SVN rev 184866 on 2008-11-12 09:04:44Z by ed
  
  Don't forget to relock the TTY after uiomove() returns an error.
  
  Peter Holm just discovered this funny bug inside the TTY code: if
  uiomove() in ttydisc_write() returns an error, we forget to relock the
  TTY before jumping out of ttydisc_write(). Fix it by placing
  tty_unlock() and tty_lock() around uiomove().
  
  Submitted by:   pho
  
  Revision  Changes    Path
  1.7       +2 -4      src/sys/kern/tty_ttydisc.c