Spidernet RX Chain tail

Tell the hardware the location of the rx ring tail.
More punctuation cleanup.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/spider_net.c

@@ -487,10 +487,10 @@ spider_net_refill_rx_chain(struct spider_net_card *card)
 }
 
 /**
- * spider_net_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
+ * spider_net_alloc_rx_skbs - Allocates rx skbs in rx descriptor chains
  * @card: card structure
  *
- * returns 0 on success, <0 on failure
+ * Returns 0 on success, <0 on failure.
  */
 static int
 spider_net_alloc_rx_skbs(struct spider_net_card *card)
@@ -501,17 +501,18 @@ spider_net_alloc_rx_skbs(struct spider_net_card *card)
 	result = -ENOMEM;
 
 	chain = &card->rx_chain;
-	/* put at least one buffer into the chain. if this fails,
-	 * we've got a problem. if not, spider_net_refill_rx_chain
-	 * will do the rest at the end of this function */
+	/* Put at least one buffer into the chain. if this fails,
+	 * we've got a problem. If not, spider_net_refill_rx_chain
+	 * will do the rest at the end of this function. */
 	if (spider_net_prepare_rx_descr(card, chain->head))
 		goto error;
 	else
 		chain->head = chain->head->next;
 
-	/* this will allocate the rest of the rx buffers; if not, it's
-	 * business as usual later on */
+	/* This will allocate the rest of the rx buffers;
+	 * if not, it's business as usual later on. */
 	spider_net_refill_rx_chain(card);
+	spider_net_enable_rxchtails(card);
 	spider_net_enable_rxdmac(card);
 	return 0;