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cxgb3: fix premature page unmap 

unmap Rx page only when guaranteed that this page won't be
used anymore to allocate rx page chunks.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Divy Le Ray 2009-11-17 16:38:28 +00:00 committed by David S. Miller
parent 4acc5a8eb4
commit 70e3bb504c
1 changed files with 2 additions and 2 deletions
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4
drivers/net/cxgb3/sge.c
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@ -879,7 +879,7 @@ recycle:
pci_dma_sync_single_for_cpu(adap->pdev, dma_addr, len,
PCI_DMA_FROMDEVICE);
(*sd->pg_chunk.p_cnt)--;
if (!*sd->pg_chunk.p_cnt)
if (!*sd->pg_chunk.p_cnt && sd->pg_chunk.page != fl->pg_chunk.page)
pci_unmap_page(adap->pdev,
sd->pg_chunk.mapping,
fl->alloc_size,
@ -2088,7 +2088,7 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs,
PCI_DMA_FROMDEVICE);
(*sd->pg_chunk.p_cnt)--;
if (!*sd->pg_chunk.p_cnt)
if (!*sd->pg_chunk.p_cnt && sd->pg_chunk.page != fl->pg_chunk.page)
pci_unmap_page(adap->pdev,
sd->pg_chunk.mapping,
fl->alloc_size,