linux-kernel - Re: [PATCH v4 02/12] omap_hsmmc: use original sg_len for dma_unmap

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Date:	Thu, 16 Jun 2011 18:46:58 +0530
From:	"S, Venkatraman" <svenkatr@...com>
To:	Per Forlin <per.forlin@...aro.org>
Cc:	linux-mmc <linux-mmc@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linaro-dev <linaro-dev@...ts.linaro.org>,
	David Vrabel <david.vrabel@....com>
Subject: Re: [PATCH v4 02/12] omap_hsmmc: use original sg_len for dma_unmap_sg

On Thu, May 26, 2011 at 3:27 AM, Per Forlin <per.forlin@...aro.org> wrote:
> Don't use the returned sg_len from dma_map_sg() as inparameter
> to dma_unmap_sg(). Use the original sg_len for both dma_map_sg
> and dma_unmap_sg.
>
> Signed-off-by: Per Forlin <per.forlin@...aro.org>
> ---
>  drivers/mmc/host/omap_hsmmc.c |    5 +++--
>  1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> index 259ece0..ad3731a 100644
> --- a/drivers/mmc/host/omap_hsmmc.c
> +++ b/drivers/mmc/host/omap_hsmmc.c
> @@ -959,7 +959,8 @@ static void omap_hsmmc_dma_cleanup(struct omap_hsmmc_host *host, int errno)
>        spin_unlock(&host->irq_lock);
>
>        if (host->use_dma && dma_ch != -1) {
> -               dma_unmap_sg(mmc_dev(host->mmc), host->data->sg, host->dma_len,
> +               dma_unmap_sg(mmc_dev(host->mmc), host->data->sg,
> +                       host->data->sg_len,
>                        omap_hsmmc_get_dma_dir(host, host->data));
>                omap_free_dma(dma_ch);
>        }
> @@ -1343,7 +1344,7 @@ static void omap_hsmmc_dma_cb(int lch, u16 ch_status, void *cb_data)
>                return;
>        }
>
> -       dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->dma_len,
> +       dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
>                omap_hsmmc_get_dma_dir(host, data));
>
>        req_in_progress = host->req_in_progress;
> --
> 1.7.4.1
>

Reviewed-by: Venkatraman S <svenkatr@...com>

Perhaps this doesn't belong to $FEATURE and can be posted as a separate patch ?
Thanks,
Venkat.
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