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TTY: add tty_port_tty_hangup helper

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It allows for cleaning up on a considerable amount of places. They did
port_get, hangup, kref_put. Now the only thing needed is to call
tty_port_tty_hangup which does exactly that. And they can also decide
whether to consider CLOCAL or completely ignore that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby
2013-03-07 13:12:30 +01:00
committed by Greg Kroah-Hartman
parent e4408ce3c2
commit aa27a094e2
16 changed files with 58 additions and 148 deletions
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6
arch/um/drivers/chan_kern.c
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@@ -568,11 +568,7 @@ void chan_interrupt(struct line *line, int irq)
reactivate_fd(chan->fd, irq);
if (err == -EIO) {
if (chan->primary) {
struct tty_struct *tty = tty_port_tty_get(&line->port);
if (tty != NULL) {
tty_hangup(tty);
tty_kref_put(tty);
}
tty_port_tty_hangup(&line->port, false);
if (line->chan_out != chan)
close_one_chan(line->chan_out, 1);
}