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[PATCH 20/22] mmc: sdricoh_cs: Make use of the new sg_map helper function

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  [PATCH 20/22] mmc: sdricoh_cs: Make use of the new sg_map helper function Logan Gunthorpe <logang@deltatee.com> - 2017-04-14 00:10 +0200

#1623379 — [PATCH 20/22] mmc: sdricoh_cs: Make use of the new sg_map helper function

This is a straightforward conversion to the new function.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
 drivers/mmc/host/sdricoh_cs.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c
index 5ff26ab..7eeed23 100644
--- a/drivers/mmc/host/sdricoh_cs.c
+++ b/drivers/mmc/host/sdricoh_cs.c
@@ -319,16 +319,20 @@ static void sdricoh_request(struct mmc_host *mmc, struct mmc_request *mrq)
 		for (i = 0; i < data->blocks; i++) {
 			size_t len = data->blksz;
 			u8 *buf;
-			struct page *page;
 			int result;
-			page = sg_page(data->sg);
 
-			buf = kmap(page) + data->sg->offset + (len * i);
+			buf = sg_map_offset(data->sg, (len * i), SG_KMAP);
+			if (IS_ERR(buf)) {
+				cmd->error = PTR_ERR(buf);
+				break;
+			}
+
 			result =
 				sdricoh_blockio(host,
 					data->flags & MMC_DATA_READ, buf, len);
-			kunmap(page);
-			flush_dcache_page(page);
+			sg_unmap_offset(data->sg, buf, (len * i), SG_KMAP);
+
+			flush_dcache_page(sg_page(data->sg));
 			if (result) {
 				dev_err(dev, "sdricoh_request: cmd %i "
 					"block transfer failed\n", cmd->opcode);
-- 
2.1.4

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