On 4 August 2015 at 08:58, Robin van der Gracht <[email protected]> wrote:
> When requesting a trim for several bytes, everything up to the next
> erase-group is erased. This causes data corruption.
>
> Signed-off-by: Robin van der Gracht <[email protected]>
Thanks, applied for next!
Kind regards
Uffe
> ---
> drivers/mmc/core/core.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index 083cade..57edb2a 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -2227,9 +2227,8 @@ int mmc_erase(struct mmc_card *card, unsigned int from,
> unsigned int nr,
> * and call mmc_do_erase() twice if necessary. This special case is
> * identified by the card->eg_boundary flag.
> */
> - if ((arg & MMC_TRIM_ARGS) && (card->eg_boundary) &&
> - (from % card->erase_size)) {
> - rem = card->erase_size - (from % card->erase_size);
> + rem = card->erase_size - (from % card->erase_size);
> + if ((arg & MMC_TRIM_ARGS) && (card->eg_boundary) && (nr > rem)) {
> err = mmc_do_erase(card, from, from + rem - 1, arg);
> from += rem;
> if ((err) || (to <= from))
> --
> 2.1.4
>
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