3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
commit 64e377dcd7d75c241d614458e9619d3445de44ef upstream.
Commit 19ffd68f816878aed456d5e87697f43bd9e3bd2b
('pty: Remove redundant itty reset') introduced a regression
whereby the other pty's linkage is not cleared on teardown.
This triggers a false positive diagnostic in testing.
Properly reset the itty linkage.
Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/tty_io.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1618,6 +1618,8 @@ static void release_tty(struct tty_struc
tty_free_termios(tty);
tty_driver_remove_tty(tty->driver, tty);
tty->port->itty = NULL;
+ if (tty->link)
+ tty->link->port->itty = NULL;
cancel_work_sync(&tty->port->buf.work);
if (tty->link)
--
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