diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c
index c956813bc6bd4b..89deb451e0ac62 100644
--- a/drivers/mmc/host/cavium.c
+++ b/drivers/mmc/host/cavium.c
@@ -374,6 +374,7 @@ static int finish_dma_single(struct cvm_mmc_host *host, struct mmc_data *data)
 {
 	data->bytes_xfered = data->blocks * data->blksz;
 	data->error = 0;
+	dma_unmap_sg(host->dev, data->sg, data->sg_len, get_dma_dir(data));
 	return 1;
 }