TTY: switch tty_insert_flip_string

Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.

tty_insert_flip_string this time.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/isdn/gigaset/interface.c

@@ -569,7 +569,7 @@ void gigaset_if_receive(struct cardstate *cs,
 		return;
 	}
 
-	tty_insert_flip_string(tty, buffer, len);
+	tty_insert_flip_string(&cs->port, buffer, len);
 	tty_flip_buffer_push(tty);
 	tty_kref_put(tty);
 }

drivers/isdn/i4l/isdn_common.c

@@ -876,9 +876,8 @@ isdn_readbchan(int di, int channel, u_char *buf, u_char *fp, int len, wait_queue
  * of the mapping (di,ch)<->minor, happen during the sleep? --he
  */
 int
-isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
+isdn_readbchan_tty(int di, int channel, struct tty_port *port, int cisco_hack)
 {
-	struct tty_port *port = tty->port;
 	int count;
 	int count_pull;
 	int count_put;
@@ -941,7 +940,7 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
 			}
 			count_put = count_pull;
 			if (count_put > 1)
-				tty_insert_flip_string(tty, skb->data, count_put - 1);
+				tty_insert_flip_string(port, skb->data, count_put - 1);
 			last = skb->data[count_put - 1];
 			len -= count_put;
 #ifdef CONFIG_ISDN_AUDIO

drivers/isdn/i4l/isdn_common.h

@@ -37,7 +37,7 @@ extern void isdn_timer_ctrl(int tf, int onoff);
 extern void isdn_unexclusive_channel(int di, int ch);
 extern int isdn_getnum(char **);
 extern int isdn_readbchan(int, int, u_char *, u_char *, int, wait_queue_head_t *);
-extern int isdn_readbchan_tty(int, int, struct tty_struct *, int);
+extern int isdn_readbchan_tty(int, int, struct tty_port *, int);
 extern int isdn_get_free_channel(int, int, int, int, int, char *);
 extern int isdn_writebuf_skb_stub(int, int, int, struct sk_buff *);
 extern int register_isdn(isdn_if *i);

drivers/isdn/i4l/isdn_tty.c

@@ -101,7 +101,7 @@ isdn_tty_try_read(modem_info *info, struct sk_buff *skb)
 	} else {
 #endif
 		if (len > 1)
-			tty_insert_flip_string(tty, skb->data, len - 1);
+			tty_insert_flip_string(port, skb->data, len - 1);
 		last = skb->data[len - 1];
 #ifdef CONFIG_ISDN_AUDIO
 	}
@@ -150,9 +150,9 @@ isdn_tty_readmodem(void)
 			if (info->mcr & UART_MCR_RTS) {
 				/* CISCO AsyncPPP Hack */
 				if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
-					r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 0);
+					r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, &info->port, 0);
 				else
-					r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 1);
+					r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, &info->port, 1);
 				if (r)
 					tty_flip_buffer_push(tty);
 			} else