mmc_block: use proper sg iterators
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 66e5a54..86dbb36 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -213,7 +213,8 @@
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
struct mmc_blk_request brq;
- int ret = 1, sg_pos, data_size;
+ int ret = 1, data_size, i;
+ struct scatterlist *sg;
mmc_claim_host(card->host);
@@ -267,18 +268,22 @@
mmc_queue_bounce_pre(mq);
+ /*
+ * Adjust the sg list so it is the same size as the
+ * request.
+ */
if (brq.data.blocks !=
(req->nr_sectors >> (md->block_bits - 9))) {
data_size = brq.data.blocks * brq.data.blksz;
- for (sg_pos = 0; sg_pos < brq.data.sg_len; sg_pos++) {
- data_size -= mq->sg[sg_pos].length;
+ for_each_sg(brq.data.sg, sg, brq.data.sg_len, i) {
+ data_size -= sg->length;
if (data_size <= 0) {
- mq->sg[sg_pos].length += data_size;
- sg_pos++;
+ sg->length += data_size;
+ i++;
break;
}
}
- brq.data.sg_len = sg_pos;
+ brq.data.sg_len = i;
}
mmc_wait_for_req(card->host, &brq.mrq);