Re: [RESEND PATCH v1] mmc: mediatek: free the ext_csd when mmc_get_ext_csd success

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On Tue, 7 Dec 2021 at 08:50, Wenbin Mei <wenbin.mei@xxxxxxxxxxxx> wrote:
>
> If mmc_get_ext_csd success, the ext_csd are not freed.
> Add the missing kfree() calls.
>
> Signed-off-by: Wenbin Mei <wenbin.mei@xxxxxxxxxxxx>
> Fixes: c4ac38c6539b ("mmc: mtk-sd: Add HS400 online tuning support")
> Cc: stable@xxxxxxxxxxxxxxx

We don't need the stable tag in this case, as commit c4ac38c6539b was
introduced in v5.16-rc1. In any case, thanks for adding the fixes tag,
it certainly helps!

Applied for fixes, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/host/mtk-sd.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
> index 943940b44e83..632775217d35 100644
> --- a/drivers/mmc/host/mtk-sd.c
> +++ b/drivers/mmc/host/mtk-sd.c
> @@ -2291,8 +2291,10 @@ static int msdc_execute_hs400_tuning(struct mmc_host *mmc, struct mmc_card *card
>                         sdr_set_field(host->base + PAD_DS_TUNE,
>                                       PAD_DS_TUNE_DLY1, i);
>                 ret = mmc_get_ext_csd(card, &ext_csd);
> -               if (!ret)
> +               if (!ret) {
>                         result_dly1 |= (1 << i);
> +                       kfree(ext_csd);
> +               }
>         }
>         host->hs400_tuning = false;
>
> --
> 2.25.1
>



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