The buffer[][] field was replaced by tty_port->xmit_buf field but there was some places that "buffer" was still accessed, giving a kernel oops because it was uninitialized. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>