ISDN: Bug fixes for the isdnloop driver

Fix missed STAT_BSENT acks and don't use skb_clone() for the skb which is
sent back, the network layer gets confused by that.

drivers/isdn/isdnloop/isdnloop.c

@@ -77,7 +77,7 @@ isdnloop_bchan_send(isdnloop_card * card, int ch)
 			};
 			cmd.command = ISDN_STAT_BSENT;
 			cmd.parm.length = len;
-			if ( ack ) card->interface.statcallb(&cmd);
+			card->interface.statcallb(&cmd);
 		} else
 			card->sndcount[ch] = 0;
 	}
@@ -422,8 +422,9 @@ isdnloop_sendbuf(int channel, struct sk_buff *skb, isdnloop_card * card)
 			return 0;
 		save_flags(flags);
 		cli();
-		nskb = skb_clone(skb, GFP_ATOMIC);
+		nskb = dev_alloc_skb(skb->len);
 		if (nskb) {
+			memcpy(skb_put(nskb, len), skb->data, len);
 			skb_queue_tail(&card->bqueue[channel], nskb);
 			dev_kfree_skb(skb);
 		} else