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    Subject[PATCH 41/80] tty: compare the tty winsize
    Date
    From: Alan Cox <alan@redhat.com>

    We always use the real tty one for stuff so the pty one should not be
    compared. As we propogate window changes to both it doesn't currently
    matter but will when we tidy up the pty termios logic a bit more

    Signed-off-by: Alan Cox <alan@redhat.com>
    ---

    drivers/char/tty_io.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)


    diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
    index ac53d7f..9a76db3 100644
    --- a/drivers/char/tty_io.c
    +++ b/drivers/char/tty_io.c
    @@ -2133,7 +2133,7 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,

    /* For a PTY we need to lock the tty side */
    mutex_lock(&real_tty->termios_mutex);
    - if (!memcmp(ws, &tty->winsize, sizeof(*ws)))
    + if (!memcmp(ws, &real_tty->winsize, sizeof(*ws)))
    goto done;
    /* Get the PID values and reference them so we can
    avoid holding the tty ctrl lock while sending signals */


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