diff options
Diffstat (limited to 'drivers/net/ppp_async.c')
| -rw-r--r-- | drivers/net/ppp_async.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c index f023d5b67e6e..1c4b7e37912c 100644 --- a/drivers/net/ppp_async.c +++ b/drivers/net/ppp_async.c @@ -158,6 +158,9 @@ ppp_asynctty_open(struct tty_struct *tty) struct asyncppp *ap; int err; + if (tty->ops->write == NULL) + return -EOPNOTSUPP; + err = -ENOMEM; ap = kzalloc(sizeof(*ap), GFP_KERNEL); if (!ap) @@ -359,8 +362,8 @@ ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf, tasklet_schedule(&ap->tsk); ap_put(ap); if (test_and_clear_bit(TTY_THROTTLED, &tty->flags) - && tty->driver->unthrottle) - tty->driver->unthrottle(tty); + && tty->ops->unthrottle) + tty->ops->unthrottle(tty); } static void @@ -676,7 +679,7 @@ ppp_async_push(struct asyncppp *ap) if (!tty_stuffed && ap->optr < ap->olim) { avail = ap->olim - ap->optr; set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); - sent = tty->driver->write(tty, ap->optr, avail); + sent = tty->ops->write(tty, ap->optr, avail); if (sent < 0) goto flush; /* error, e.g. loss of CD */ ap->optr += sent; |