[PATCH] fix drivers/net/cs89x0.c warning.

drivers/net/cs89x0.c: In function `net_close':
drivers/net/cs89x0.c:1601: warning: unused variable `lp'

 'lp'is only used when ALLOW_DMA is defined.
Signed-off-by: Luiz Capitulino <lcapitulino@conectiva.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/net/cs89x0.c

@@ -1598,7 +1598,9 @@ static void release_dma_buff(struct net_local *lp)
 static int
 net_close(struct net_device *dev)
 {
+#if ALLOW_DMA
 	struct net_local *lp = netdev_priv(dev);
+#endif
 
 	netif_stop_queue(dev);