mmc: omap_hsmmc: use original sg_len for dma_unmap_sg

Don't use the returned sg_len from dma_map_sg() as inparameter
to dma_unmap_sg(). Use the original sg_len for both dma_map_sg
and dma_unmap_sg according to the documentation in DMA-API.txt.

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Reviewed-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 8707bcdebc43..dedf3dab8a3b 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -961,7 +961,8 @@ static void omap_hsmmc_dma_cleanup(struct omap_hsmmc_host *host, int errno)
         spin_unlock(&host->irq_lock);
 
         if (host->use_dma && dma_ch != -1) {
-                dma_unmap_sg(mmc_dev(host->mmc), host->data->sg, host->dma_len,
+                dma_unmap_sg(mmc_dev(host->mmc), host->data->sg,
+                        host->data->sg_len,
                         omap_hsmmc_get_dma_dir(host, host->data));
                 omap_free_dma(dma_ch);
         }
@@ -1345,7 +1346,7 @@ static void omap_hsmmc_dma_cb(int lch, u16 ch_status, void *cb_data)
                 return;
         }
 
-        dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->dma_len,
+        dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
                 omap_hsmmc_get_dma_dir(host, data));
 
         req_in_progress = host->req_in_progress;