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path: root/drivers/mmc/card/queue.c
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Diffstat (limited to 'drivers/mmc/card/queue.c')
-rw-r--r--drivers/mmc/card/queue.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index a5d0354bbbda..9203a0b221b3 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -13,6 +13,7 @@
13#include <linux/blkdev.h> 13#include <linux/blkdev.h>
14#include <linux/freezer.h> 14#include <linux/freezer.h>
15#include <linux/kthread.h> 15#include <linux/kthread.h>
16#include <linux/scatterlist.h>
16 17
17#include <linux/mmc/card.h> 18#include <linux/mmc/card.h>
18#include <linux/mmc/host.h> 19#include <linux/mmc/host.h>
@@ -153,19 +154,21 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
153 blk_queue_max_hw_segments(mq->queue, bouncesz / 512); 154 blk_queue_max_hw_segments(mq->queue, bouncesz / 512);
154 blk_queue_max_segment_size(mq->queue, bouncesz); 155 blk_queue_max_segment_size(mq->queue, bouncesz);
155 156
156 mq->sg = kzalloc(sizeof(struct scatterlist), 157 mq->sg = kmalloc(sizeof(struct scatterlist),
157 GFP_KERNEL); 158 GFP_KERNEL);
158 if (!mq->sg) { 159 if (!mq->sg) {
159 ret = -ENOMEM; 160 ret = -ENOMEM;
160 goto cleanup_queue; 161 goto cleanup_queue;
161 } 162 }
163 sg_init_table(mq->sg, 1);
162 164
163 mq->bounce_sg = kzalloc(sizeof(struct scatterlist) * 165 mq->bounce_sg = kmalloc(sizeof(struct scatterlist) *
164 bouncesz / 512, GFP_KERNEL); 166 bouncesz / 512, GFP_KERNEL);
165 if (!mq->bounce_sg) { 167 if (!mq->bounce_sg) {
166 ret = -ENOMEM; 168 ret = -ENOMEM;
167 goto cleanup_queue; 169 goto cleanup_queue;
168 } 170 }
171 sg_init_table(mq->bounce_sg, bouncesz / 512);
169 } 172 }
170 } 173 }
171#endif 174#endif
@@ -302,12 +305,12 @@ static void copy_sg(struct scatterlist *dst, unsigned int dst_len,
302 BUG_ON(dst_len == 0); 305 BUG_ON(dst_len == 0);
303 306
304 if (dst_size == 0) { 307 if (dst_size == 0) {
305 dst_buf = page_address(dst->page) + dst->offset; 308 dst_buf = sg_virt(dst);
306 dst_size = dst->length; 309 dst_size = dst->length;
307 } 310 }
308 311
309 if (src_size == 0) { 312 if (src_size == 0) {
310 src_buf = page_address(src->page) + src->offset; 313 src_buf = sg_virt(dst);
311 src_size = src->length; 314 src_size = src->length;
312 } 315 }
313 316
@@ -353,9 +356,7 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq)
353 return 1; 356 return 1;
354 } 357 }
355 358
356 mq->sg[0].page = virt_to_page(mq->bounce_buf); 359 sg_init_one(mq->sg, mq->bounce_buf, 0);
357 mq->sg[0].offset = offset_in_page(mq->bounce_buf);
358 mq->sg[0].length = 0;
359 360
360 while (sg_len) { 361 while (sg_len) {
361 mq->sg[0].length += mq->bounce_sg[sg_len - 1].length; 362 mq->sg[0].length += mq->bounce_sg[sg_len - 1].length;