[PATCH 4/21]: powerpc/cell spidernet force-end fix

[Linas Vepstas]

Bugfix: when cleaning up the transmit queue upon device close,
be sure to walk the entire queue.

Signed-off-by: Linas Vepstas <linas at austin.ibm.com>
Cc: James K Lewis <jklewis at us.ibm.com>
Cc: Arnd Bergmann <arnd at arndb.de>

----
 drivers/net/spider_net.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Index: linux-2.6.18-mm2/drivers/net/spider_net.c
===================================================================
--- linux-2.6.18-mm2.orig/drivers/net/spider_net.c	2006-10-10 12:21:40.000000000 -0500
+++ linux-2.6.18-mm2/drivers/net/spider_net.c	2006-10-10 12:22:49.000000000 -0500
@@ -699,6 +699,8 @@ spider_net_release_tx_descr(struct spide
 
 	/* unmap the skb */
 	skb = descr->skb;
+	if (!skb)
+		return;
 	pci_unmap_single(card->pdev, descr->buf_addr, skb->len,
 			PCI_DMA_TODEVICE);
 	dev_kfree_skb_any(skb);
@@ -751,7 +753,8 @@ spider_net_release_tx_chain(struct spide
 
 		default:
 			card->netdev_stats.tx_dropped++;
-			return 1;
+			if (!brutal)
+				return 1;
 		}
 		spider_net_release_tx_descr(card);
 	}