isdn: hisax: Fix lock imbalance.

Add omittted unlocks to 2 functions.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: Karsten Keil <Karsten-Keil@t-online.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/isdn/hisax/amd7930_fn.c

@@ -594,6 +594,7 @@ Amd7930_l1hw(struct PStack *st, int pr, void *arg)
 				if (cs->debug & L1_DEB_WARN)
 					debugl1(cs, "Amd7930: l1hw: l2l1 tx_skb exist this shouldn't happen");
 				skb_queue_tail(&cs->sq, skb);
+				spin_unlock_irqrestore(&cs->lock, flags);
 				break;
 			}
 			if (cs->debug & DEB_DLOG_HEX)

drivers/isdn/hisax/icc.c

@@ -468,6 +468,7 @@ ICC_l1hw(struct PStack *st, int pr, void *arg)
 				if (cs->debug & L1_DEB_WARN)
 					debugl1(cs, " l2l1 tx_skb exist this shouldn't happen");
 				skb_queue_tail(&cs->sq, skb);
+				spin_unlock_irqrestore(&cs->lock, flags);
 				break;
 			}
 			if (cs->debug & DEB_DLOG_HEX)