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use sg helper function in DMA mapping documentation

Signed-off-by: Saeed Bishara <saeed.bishara@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
saeed bishara 18 лет назад
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4c2f6d4c28
1 измененных файлов с 1 добавлено и 1 удалено
  1. 1 1
      Documentation/DMA-mapping.txt

+ 1 - 1
Documentation/DMA-mapping.txt

@@ -514,7 +514,7 @@ With scatterlists, you map a region gathered from several regions by:
 	int i, count = pci_map_sg(dev, sglist, nents, direction);
 	struct scatterlist *sg;
 
-	for (i = 0, sg = sglist; i < count; i++, sg++) {
+	for_each_sg(sglist, sg, count, i) {
 		hw_address[i] = sg_dma_address(sg);
 		hw_len[i] = sg_dma_len(sg);
 	}