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Blackfin arch: fix bug set dma_address properly in dma_map_sg
author
Sonic Zhang
<sonic.zhang@analog.com>
Thu, 12 Jul 2007 04:18:08 +0000
(12:18 +0800)
committer
Bryan Wu
<bryan.wu@analog.com>
Thu, 12 Jul 2007 04:18:08 +0000
(12:18 +0800)
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
arch/blackfin/kernel/dma-mapping.c
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diff --git
a/arch/blackfin/kernel/dma-mapping.c
b/arch/blackfin/kernel/dma-mapping.c
index bda57ec88151f961d62021aac673b66b502b86ac..ea48d5b13f11469a18faebbd15461def98ef5d23 100644
(file)
--- a/
arch/blackfin/kernel/dma-mapping.c
+++ b/
arch/blackfin/kernel/dma-mapping.c
@@
-159,10
+159,13
@@
dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
BUG_ON(direction == DMA_NONE);
- for (i = 0; i < nents; i++)
- invalidate_dcache_range(sg_dma_address(&sg[i]),
- sg_dma_address(&sg[i]) +
- sg_dma_len(&sg[i]));
+ for (i = 0; i < nents; i++, sg++) {
+ sg->dma_address = page_address(sg->page) + sg->offset;
+
+ invalidate_dcache_range(sg_dma_address(sg),
+ sg_dma_address(sg) +
+ sg_dma_len(sg));
+ }
return nents;
}