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path: root/drivers/mmc/card/block.c
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Diffstat (limited to 'drivers/mmc/card/block.c')
-rw-r--r--drivers/mmc/card/block.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 66e5a5487c20..86dbb366415a 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -213,7 +213,8 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
213 struct mmc_blk_data *md = mq->data; 213 struct mmc_blk_data *md = mq->data;
214 struct mmc_card *card = md->queue.card; 214 struct mmc_card *card = md->queue.card;
215 struct mmc_blk_request brq; 215 struct mmc_blk_request brq;
216 int ret = 1, sg_pos, data_size; 216 int ret = 1, data_size, i;
217 struct scatterlist *sg;
217 218
218 mmc_claim_host(card->host); 219 mmc_claim_host(card->host);
219 220
@@ -267,18 +268,22 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
267 268
268 mmc_queue_bounce_pre(mq); 269 mmc_queue_bounce_pre(mq);
269 270
271 /*
272 * Adjust the sg list so it is the same size as the
273 * request.
274 */
270 if (brq.data.blocks != 275 if (brq.data.blocks !=
271 (req->nr_sectors >> (md->block_bits - 9))) { 276 (req->nr_sectors >> (md->block_bits - 9))) {
272 data_size = brq.data.blocks * brq.data.blksz; 277 data_size = brq.data.blocks * brq.data.blksz;
273 for (sg_pos = 0; sg_pos < brq.data.sg_len; sg_pos++) { 278 for_each_sg(brq.data.sg, sg, brq.data.sg_len, i) {
274 data_size -= mq->sg[sg_pos].length; 279 data_size -= sg->length;
275 if (data_size <= 0) { 280 if (data_size <= 0) {
276 mq->sg[sg_pos].length += data_size; 281 sg->length += data_size;
277 sg_pos++; 282 i++;
278 break; 283 break;
279 } 284 }
280 } 285 }
281 brq.data.sg_len = sg_pos; 286 brq.data.sg_len = i;
282 } 287 }
283 288
284 mmc_wait_for_req(card->host, &brq.mrq); 289 mmc_wait_for_req(card->host, &brq.mrq);