tty: The big operations rework

[linux-2.6-omap-h63xx.git] / drivers / net / hamradio / 6pack.c

diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 1da55dd2a5a0a07b4e05340a050e618bbf805166..82a36266dfc92999324f68414e92dd95a8dec0a2 100644 (file)
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -148,13 +148,13 @@ static void sp_xmit_on_air(unsigned long channel)
 
        if (((sp->status1 & SIXP_DCD_MASK) == 0) && (random < sp->persistence)) {
                sp->led_state = 0x70;
-               sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+               sp->tty->ops->write(sp->tty, &sp->led_state, 1);
                sp->tx_enable = 1;
-               actual = sp->tty->driver->write(sp->tty, sp->xbuff, sp->status2);
+               actual = sp->tty->ops->write(sp->tty, sp->xbuff, sp->status2);
                sp->xleft -= actual;
                sp->xhead += actual;
                sp->led_state = 0x60;
-               sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+               sp->tty->ops->write(sp->tty, &sp->led_state, 1);
                sp->status2 = 0;
        } else
                mod_timer(&sp->tx_t, jiffies + ((when + 1) * HZ) / 100);
@@ -220,13 +220,13 @@ static void sp_encaps(struct sixpack *sp, unsigned char *icp, int len)
         */
        if (sp->duplex == 1) {
                sp->led_state = 0x70;
-               sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+               sp->tty->ops->write(sp->tty, &sp->led_state, 1);
                sp->tx_enable = 1;
-               actual = sp->tty->driver->write(sp->tty, sp->xbuff, count);
+               actual = sp->tty->ops->write(sp->tty, sp->xbuff, count);
                sp->xleft = count - actual;
                sp->xhead = sp->xbuff + actual;
                sp->led_state = 0x60;
-               sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+               sp->tty->ops->write(sp->tty, &sp->led_state, 1);
        } else {
                sp->xleft = count;
                sp->xhead = sp->xbuff;
@@ -444,7 +444,7 @@ static void sixpack_write_wakeup(struct tty_struct *tty)
        }
 
        if (sp->tx_enable) {
-               actual = tty->driver->write(tty, sp->xhead, sp->xleft);
+               actual = tty->ops->write(tty, sp->xhead, sp->xleft);
                sp->xleft -= actual;
                sp->xhead += actual;
        }
@@ -492,8 +492,8 @@ static void sixpack_receive_buf(struct tty_struct *tty,
 
        sp_put(sp);
        if (test_and_clear_bit(TTY_THROTTLED, &tty->flags)
-           && tty->driver->unthrottle)
-               tty->driver->unthrottle(tty);
+           && tty->ops->unthrottle)
+               tty->ops->unthrottle(tty);
 }
 
 /*
@@ -554,8 +554,8 @@ static void resync_tnc(unsigned long channel)
        /* resync the TNC */
 
        sp->led_state = 0x60;
-       sp->tty->driver->write(sp->tty, &sp->led_state, 1);
-       sp->tty->driver->write(sp->tty, &resync_cmd, 1);
+       sp->tty->ops->write(sp->tty, &sp->led_state, 1);
+       sp->tty->ops->write(sp->tty, &resync_cmd, 1);
 
 
        /* Start resync timer again -- the TNC might be still absent */
@@ -573,7 +573,7 @@ static inline int tnc_init(struct sixpack *sp)
 
        tnc_set_sync_state(sp, TNC_UNSYNC_STARTUP);
 
-       sp->tty->driver->write(sp->tty, &inbyte, 1);
+       sp->tty->ops->write(sp->tty, &inbyte, 1);
 
        del_timer(&sp->resync_t);
        sp->resync_t.data = (unsigned long) sp;
@@ -601,6 +601,8 @@ static int sixpack_open(struct tty_struct *tty)
 
        if (!capable(CAP_NET_ADMIN))
                return -EPERM;
+       if (tty->ops->write == NULL)
+               return -EOPNOTSUPP;
 
        dev = alloc_netdev(sizeof(struct sixpack), "sp%d", sp_setup);
        if (!dev) {
@@ -914,9 +916,9 @@ static void decode_prio_command(struct sixpack *sp, unsigned char cmd)
        } else { /* output watchdog char if idle */
                if ((sp->status2 != 0) && (sp->duplex == 1)) {
                        sp->led_state = 0x70;
-                       sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+                       sp->tty->ops->write(sp->tty, &sp->led_state, 1);
                        sp->tx_enable = 1;
-                       actual = sp->tty->driver->write(sp->tty, sp->xbuff, sp->status2);
+                       actual = sp->tty->ops->write(sp->tty, sp->xbuff, sp->status2);
                        sp->xleft -= actual;
                        sp->xhead += actual;
                        sp->led_state = 0x60;
@@ -926,7 +928,7 @@ static void decode_prio_command(struct sixpack *sp, unsigned char cmd)
        }
 
        /* needed to trigger the TNC watchdog */
-       sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+       sp->tty->ops->write(sp->tty, &sp->led_state, 1);
 
         /* if the state byte has been received, the TNC is present,
            so the resync timer can be reset. */
@@ -956,12 +958,12 @@ static void decode_std_command(struct sixpack *sp, unsigned char cmd)
                        if ((sp->status & SIXP_RX_DCD_MASK) ==
                                SIXP_RX_DCD_MASK) {
                                sp->led_state = 0x68;
-                               sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+                               sp->tty->ops->write(sp->tty, &sp->led_state, 1);
                        }
                } else {
                        sp->led_state = 0x60;
                        /* fill trailing bytes with zeroes */
-                       sp->tty->driver->write(sp->tty, &sp->led_state, 1);
+                       sp->tty->ops->write(sp->tty, &sp->led_state, 1);
                        rest = sp->rx_count;
                        if (rest != 0)
                                 for (i = rest; i <= 3; i++)