WAN: Use u32 type instead of u_int32_t in LMC driver.
[sfrench/cifs-2.6.git] / drivers / net / slip.c
index 5a55ede352f4bc79dbceb5ee73bc2a6c0afb59d6..1d58991d395b6ef32120e1e265c8245ab61219e3 100644 (file)
@@ -396,14 +396,14 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len)
 
        /* Order of next two lines is *very* important.
         * When we are sending a little amount of data,
-        * the transfer may be completed inside driver.write()
+        * the transfer may be completed inside the ops->write()
         * routine, because it's running with interrupts enabled.
         * In this case we *never* got WRITE_WAKEUP event,
         * if we did not request it before write operation.
         *       14 Oct 1994  Dmitry Gorodchanin.
         */
        sl->tty->flags |= (1 << TTY_DO_WRITE_WAKEUP);
-       actual = sl->tty->driver->write(sl->tty, sl->xbuff, count);
+       actual = sl->tty->ops->write(sl->tty, sl->xbuff, count);
 #ifdef SL_CHECK_TRANSMIT
        sl->dev->trans_start = jiffies;
 #endif
@@ -437,7 +437,7 @@ static void slip_write_wakeup(struct tty_struct *tty)
                return;
        }
 
-       actual = tty->driver->write(tty, sl->xhead, sl->xleft);
+       actual = tty->ops->write(tty, sl->xhead, sl->xleft);
        sl->xleft -= actual;
        sl->xhead += actual;
 }
@@ -462,7 +462,7 @@ static void sl_tx_timeout(struct net_device *dev)
                }
                printk(KERN_WARNING "%s: transmit timed out, %s?\n",
                        dev->name,
-                       (sl->tty->driver->chars_in_buffer(sl->tty) || sl->xleft) ?
+                       (tty_chars_in_buffer(sl->tty) || sl->xleft) ?
                                "bad line quality" : "driver error");
                sl->xleft = 0;
                sl->tty->flags &= ~(1 << TTY_DO_WRITE_WAKEUP);
@@ -830,6 +830,9 @@ static int slip_open(struct tty_struct *tty)
        if (!capable(CAP_NET_ADMIN))
                return -EPERM;
 
+       if (tty->ops->write == NULL)
+               return -EOPNOTSUPP;
+
        /* RTnetlink lock is misused here to serialize concurrent
           opens of slip channels. There are better ways, but it is
           the simplest one.
@@ -1298,7 +1301,7 @@ static int sl_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 #endif
 /* VSV changes end */
 
-static struct tty_ldisc        sl_ldisc = {
+static struct tty_ldisc_ops sl_ldisc = {
        .owner          = THIS_MODULE,
        .magic          = TTY_LDISC_MAGIC,
        .name           = "slip",
@@ -1432,7 +1435,7 @@ static void sl_outfill(unsigned long sls)
                        /* put END into tty queue. Is it right ??? */
                        if (!netif_queue_stopped(sl->dev)) {
                                /* if device busy no outfill */
-                               sl->tty->driver->write(sl->tty, &s, 1);
+                               sl->tty->ops->write(sl->tty, &s, 1);
                        }
                } else
                        set_bit(SLF_OUTWAIT, &sl->flags);