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async_pq: convert to dmaengine_unmap_data

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Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <[email protected]>
Cc: Tomasz Figa <[email protected]>
Cc: Dave Jiang <[email protected]>
Reported-by: Bartlomiej Zolnierkiewicz <[email protected]>
[bzolnier: keep temporary dma_dest array in do_async_gen_syndrome()]
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
This commit is contained in:
Dan Williams 2013-10-18 19:35:29 +02:00
commit 7476bd79fc
2 changed files with 69 additions and 53 deletions
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5
drivers/dma/dmaengine.c
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@ -953,9 +953,12 @@ static void dmaengine_unmap(struct kref *kref)
dma_unmap_page(dev, unmap->addr[i], unmap->len,
DMA_FROM_DEVICE);
cnt += unmap->bidi_cnt;
for (; i < cnt; i++)
for (; i < cnt; i++) {
if (unmap->addr[i] == 0)
continue;
dma_unmap_page(dev, unmap->addr[i], unmap->len,
DMA_BIDIRECTIONAL);
}
mempool_free(unmap, __get_unmap_pool(cnt)->pool);
}