[PATCH v2 15/24] mmc: sdhci: always unmap a mapped data transfer in sdhci_post_req()

[Russell King <rmk+kernel@arm.linux.org.uk>]

If the host cookie indicates that the data buffers of a request are
mapped at sdhci_post_req() time, always unmap the data buffers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/host/sdhci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 46cffb7f6841..264248ac439e 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2077,8 +2077,7 @@ static void sdhci_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
 	struct mmc_data *data = mrq->data;
 
 	if (host->flags & SDHCI_REQ_USE_DMA) {
-		if (data->host_cookie == COOKIE_GIVEN ||
-				data->host_cookie == COOKIE_MAPPED)
+		if (data->host_cookie != COOKIE_UNMAPPED)
 			dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
 					 data->flags & MMC_DATA_WRITE ?
 					 DMA_TO_DEVICE : DMA_FROM_DEVICE);
-- 
2.1.0