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Subject[PATCH 20/21]: powerpc/cell spidernet release all descrs
From

Bugfix: rx descriptor release function fails to visit
the last entry while walking receive descriptor ring.

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

----
drivers/net/spider_net.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

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 13:37:40.000000000 -0500
+++ linux-2.6.18-mm2/drivers/net/spider_net.c 2006-10-10 13:40:56.000000000 -0500
@@ -358,7 +358,7 @@ spider_net_free_rx_chain_contents(struct
struct spider_net_descr *descr;

descr = card->rx_chain.head;
- while (descr->next != card->rx_chain.head) {
+ do {
if (descr->skb) {
dev_kfree_skb(descr->skb);
pci_unmap_single(card->pdev, descr->buf_addr,
@@ -366,7 +366,7 @@ spider_net_free_rx_chain_contents(struct
PCI_DMA_BIDIRECTIONAL);
}
descr = descr->next;
- }
+ } while (descr != card->rx_chain.head);
}

/**
-
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