The session and foreground process group pid references will be non-NULL if tiocsctty() is stealing the controlling tty from another session (ie., arg == 1 in tiocsctty()).
Signed-off-by: Peter Hurley <[email protected]> --- drivers/tty/tty_io.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 7def510..e18491a 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -516,8 +516,11 @@ static void __proc_set_tty(struct tty_struct *tty) { unsigned long flags; - /* We should not have a session or pgrp to put here but.... */ spin_lock_irqsave(&tty->ctrl_lock, flags); + /* + * The session and fg pgrp references will be non-NULL if + * tiocsctty() is stealing the controlling tty + */ put_pid(tty->session); put_pid(tty->pgrp); tty->pgrp = get_pid(task_pgrp(current)); -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
