tty: compare the tty winsize
We always use the real tty one for stuff so the pty one should not be compared. As we propagate 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> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -2133,7 +2133,7 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,
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/* For a PTY we need to lock the tty side */
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mutex_lock(&real_tty->termios_mutex);
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if (!memcmp(ws, &tty->winsize, sizeof(*ws)))
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if (!memcmp(ws, &real_tty->winsize, sizeof(*ws)))
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goto done;
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/* Get the PID values and reference them so we can
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avoid holding the tty ctrl lock while sending signals */
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