ISDN: exclusive handling in isdn_net_force_dial_lp()

When using exclusive mode, we already reserved our channel
at the time that mode was set, so no need to get a free channel
in this case.

Also, indent cleanups to isdn_net_start_xmit().

drivers/isdn/i4l/isdn_net.c

@@ -1043,7 +1043,6 @@ isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		return isdn_x25_start_xmit(skb, ndev);
 		
 	/* auto-dialing xmit function */
-	{
 	isdn_net_adjust_hdr(skb, ndev);
 	isdn_dumppkt("S:", skb->data, skb->len, 40);
 	
@@ -1133,7 +1132,6 @@ isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		} else
 			netif_stop_queue(ndev);
 	}
-	}
 	return 1;
 }
 
@@ -1696,27 +1694,32 @@ isdn_net_force_dial_lp(isdn_net_local * lp)
 	save_flags(flags);
 	cli();
 
-	/* Grab a free ISDN-Channel */
+	if (lp->exclusive >= 0) {
+		chi = lp->exclusive;
+	} else {
 		chi = isdn_get_free_slot(ISDN_USAGE_NET, lp->l2_proto, lp->l3_proto,
 					 lp->pre_device, lp->pre_channel, lp->msn);
+	}
 	if (chi < 0) {
 		printk(KERN_WARNING "isdn_net_force_dial: No channel for %s\n", lp->name);
-		restore_flags(flags);
-		return -EAGAIN;
+		goto err;
 	}
 	/* Connect interface with channel */
 	isdn_net_bind_channel(lp, chi);
 	if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
 		if (isdn_ppp_bind(lp) < 0) {
 			isdn_net_unbind_channel(lp);
-			restore_flags(flags);
-			return -EAGAIN;
+			goto err;
 		}
 	/* Initiate dialing */
 	restore_flags(flags);
 	init_dialout(lp);
 
 	return 0;
+
+ err:
+	restore_flags(flags);
+	return -EAGAIN;
 }
 
 /*