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Subject[PATCH v5 31/44] tty: Clarify ldisc variable
Date
Rename o_ldisc to avoid confusion with the ldisc of the
'other' tty.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
drivers/tty/tty_ldisc.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index a150f95..9ace119 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -516,7 +516,7 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
int tty_set_ldisc(struct tty_struct *tty, int ldisc)
{
int retval;
- struct tty_ldisc *o_ldisc, *new_ldisc;
+ struct tty_ldisc *old_ldisc, *new_ldisc;
struct tty_struct *o_tty = tty->link;

new_ldisc = tty_ldisc_get(tty, ldisc);
@@ -540,7 +540,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
/* FIXME: why 'shutoff' input if the ldisc is locked? */
tty->receive_room = 0;

- o_ldisc = tty->ldisc;
+ old_ldisc = tty->ldisc;
tty_lock(tty);

/* FIXME: for testing only */
@@ -555,8 +555,8 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
return -EIO;
}

- /* Shutdown the current discipline. */
- tty_ldisc_close(tty, o_ldisc);
+ /* Shutdown the old discipline. */
+ tty_ldisc_close(tty, old_ldisc);

/* Now set up the new line discipline. */
tty->ldisc = new_ldisc;
@@ -566,17 +566,17 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
if (retval < 0) {
/* Back to the old one or N_TTY if we can't */
tty_ldisc_put(new_ldisc);
- tty_ldisc_restore(tty, o_ldisc);
+ tty_ldisc_restore(tty, old_ldisc);
}

/* At this point we hold a reference to the new ldisc and a
a reference to the old ldisc. If we ended up flipping back
to the existing ldisc we have two references to it */

- if (tty->ldisc->ops->num != o_ldisc->ops->num && tty->ops->set_ldisc)
+ if (tty->ldisc->ops->num != old_ldisc->ops->num && tty->ops->set_ldisc)
tty->ops->set_ldisc(tty);

- tty_ldisc_put(o_ldisc);
+ tty_ldisc_put(old_ldisc);

/*
* Allow ldisc referencing to occur again
--
1.8.1.2


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