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mmc: tmio_mmc: unmap with the proper sglen 

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@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Linus Walleij 2011-02-10 16:10:47 +01:00 committed by Chris Ball
parent 2dc7ddc1e7
commit d7554caa2c
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/host/tmio_mmc.c
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@ -983,11 +983,11 @@ 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);