diff options
| author | Alan Cox <alan@linux.intel.com> | 2010-01-04 16:26:50 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-25 10:49:20 -0800 |
| commit | 6fc7937a46b9a5d6b7f61005055a856736f31442 (patch) | |
| tree | 67ae25642e84d1459bb2e5db4b721cf4a37f7495 /drivers/char | |
| parent | 8c535426188c312914bebec8158324dbdbdca2d3 (diff) | |
nozomi: quick fix for the close/close bug
commit eeec32a731631a9bad9abb21c626b9f2840bee0d upstream.
Nozomi goes wrong if you get the sequence
open
open
close
[stuff]
close
which turns out to occur on some ppp type setups.
This is a quick patch up for the problem. It's not really fixing Nozomi
which completely fails to implement tty open/close semantics and all the
other needed stuff. Doing it right is a rather more invasive patch set and
not one that will backport.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/nozomi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c index d3400b20444..dc52f75a810 100644 --- a/drivers/char/nozomi.c +++ b/drivers/char/nozomi.c @@ -1629,10 +1629,10 @@ static void ntty_close(struct tty_struct *tty, struct file *file) dc->open_ttys--; port->count--; - tty_port_tty_set(port, NULL); if (port->count == 0) { DBG1("close: %d", nport->token_dl); + tty_port_tty_set(port, NULL); spin_lock_irqsave(&dc->spin_mutex, flags); dc->last_ier &= ~(nport->token_dl); writew(dc->last_ier, dc->reg_ier); |