Re: [PATCH] mmc: dw_mmc: stop and complete DMA also in STATE_DATA_BUSY state

On Wed, Jun 3, 2026 at 10:39 AM Marek Szyprowski
<[email protected]> wrote:
>
> When transfer was stopped in STATE_DATA_BUSY state, there was no call to
> dma_ops->cleanup function, so the DMA mapped buffer was never properly
> unmapped. Fix this by calling dw_mci_stop_dma() function also in that
> state to ensure proper cleanup call when DMA transfer was used.
>
> Signed-off-by: Marek Szyprowski <[email protected]>

Applied for next, thanks!

Please, let me know if you think there is reason to tag this for
stable kernels too.

Kind regards
Uffe


> ---
>  drivers/mmc/host/dw_mmc.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index d734d010444d..cf5cecc5491d 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -2057,6 +2057,7 @@ static void dw_mci_work_func(struct work_struct *t)
>                         }
>
>                         dw_mci_stop_fault_timer(host);
> +                       dw_mci_stop_dma(host);
>                         host->data = NULL;
>                         set_bit(EVENT_DATA_COMPLETE, &host->completed_events);
>                         err = dw_mci_data_complete(host, data);
> --
> 2.34.1
>