According to the DMA-API you shall unmap the sglists with the same sglist length as passed into the mapping function, not the returned value from the mapping function. Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> --- drivers/mmc/host/tmio_mmc.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index c82d8e2..5da2e17 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -979,11 +979,11 @@ static void tmio_tasklet_fn(unsigned long arg) if (host->data->flags & MMC_DATA_READ) dma_unmap_sg(host->chan_rx->device->dev, - host->sg_ptr, host->dma_sglen, + host->sg_ptr, host->sg_len, DMA_FROM_DEVICE); else dma_unmap_sg(host->chan_tx->device->dev, - host->sg_ptr, host->dma_sglen, + host->sg_ptr, host->sg_len, DMA_TO_DEVICE); tmio_mmc_do_data_irq(host); -- 1.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html