Hi Geert-san,
> From: Geert Uytterhoeven, Sent: Thursday, June 28, 2018 9:50 PM
>
> Hi Shimoda-san,
>
> On Thu, Jun 28, 2018 at 1:53 PM Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
> > This patch fixes an issue that lacks the dma_unmap_sg() calling in
> > the error patch of renesas_sdhi_internal_dmac_start_dma().
>
> Nice catch!
> Thanks for your patch!
>
> > Fixes: 0cbc94daa554 ("mmc: renesas_sdhi_internal_dmac: limit DMA RX for old SoCs")
> > Cc: <stable@xxxxxxxxxxxxxxx> # v4.17+
> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Thank you for your review!
> > --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
> > +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
> > @@ -173,8 +173,11 @@
> > if (data->flags & MMC_DATA_READ) {
> > dtran_mode |= DTRAN_MODE_CH_NUM_CH1;
> > if (test_bit(SDHI_INTERNAL_DMAC_ONE_RX_ONLY, &global_flags) &&
> > - test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags))
> > + test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags)) {
> > + dma_unmap_sg(&host->pdev->dev, sg, host->sg_len,
> > + mmc_get_dma_dir(data));
>
> Given there is already a call to dma_unmap_sg() a few lines earlier , you
> may want to introduce a new label before force_pio, and move the call to
> dma_unmap_sg() there.
Thank you for the comment. So, I'll submit v2 patch.
Best regards,
Yoshihiro Shimoda
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