Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
        .release        = single_release,
 };
 
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
        .open = rs_open,
        .close = rs_close,
        .write = rs_write,
 
        }
 }
 
-static struct tty_operations bfin_jc_ops = {
+static const struct tty_operations bfin_jc_ops = {
        .open            = bfin_jc_open,
        .close           = bfin_jc_close,
        .write           = bfin_jc_write,
 
        return 0;
 }
 
-static struct tty_operations info_ops = {
+static const struct tty_operations info_ops = {
        .open = info_open,
        .ioctl = info_ioctl,
 };
 
        }
 }
 
-static struct tty_operations tty_ops = {
+static const struct tty_operations tty_ops = {
        .open = ipw_open,
        .close = ipw_close,
        .hangup = ipw_hangup,