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Commit 9dc3fb5e authored by Linus Walleij's avatar Linus Walleij Committed by Chris Ball
Browse files

mmc: sh_mmcif: 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: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 1ed828db

drivers/mmc/host/sh_mmcif.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -195,11 +195,11 @@ static void mmcif_dma_complete(void *arg) 




	if (host->data->flags & MMC_DATA_READ)

	if (host->data->flags & MMC_DATA_READ)

		dma_unmap_sg(host->chan_rx->device->dev,

		dma_unmap_sg(host->chan_rx->device->dev,

			     host->data->sg, host->dma_sglen,

			     host->data->sg, host->data->sg_len,

			     DMA_FROM_DEVICE);

			     DMA_FROM_DEVICE);

	else

	else

		dma_unmap_sg(host->chan_tx->device->dev,

		dma_unmap_sg(host->chan_tx->device->dev,

			     host->data->sg, host->dma_sglen,

			     host->data->sg, host->data->sg_len,

			     DMA_TO_DEVICE);

			     DMA_TO_DEVICE);





	complete(&host->dma_complete);

	complete(&host->dma_complete);