isdn:hisax: Replace dev_kfree_skb_any by dev_consume_skb_any

The skb should be freed by dev_consume_skb_any() in hfcpci_fill_fifo()
when bcs->tx_skb is still used. The bcs->tx_skb is be replaced by
skb_dequeue(&bcs->squeue), so the original bcs->tx_skb should
be consumed(not drop).
Signed-off-by: NHuang Zijiang <huang.zijiang@zte.com.cn>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/isdn/hisax/hfc_pci.c

@@ -656,7 +656,7 @@ hfcpci_fill_fifo(struct BCState *bcs)
 				schedule_event(bcs, B_ACKPENDING);
 			}
 
-			dev_kfree_skb_any(bcs->tx_skb);
+			dev_consume_skb_any(bcs->tx_skb);
 			bcs->tx_skb = skb_dequeue(&bcs->squeue);	/* fetch next data */
 		}
 		test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);