On 13/03/24 15:37, mikko.rapeli@xxxxxxxxxx wrote:
> From: Mikko Rapeli <mikko.rapeli@xxxxxxxxxx>
>
> Commit "mmc: core: Use mrq.sbc in close-ended ffu" adds flags uint to
> struct mmc_blk_ioc_data but it does not get initialized for RPMB ioctls
> which now fail.
>
> Fix this by always initializing the struct and flags to zero.
>
> Fixes access to RPMB storage.
>
> Fixes: 4d0c8d0aef63 ("mmc: core: Use mrq.sbc in close-ended ffu")
>
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218587
>
> Link: https://lore.kernel.org/all/20231129092535.3278-1-avri.altman@xxxxxxx/
>
> Cc: Avri Altman <avri.altman@xxxxxxx>
> Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Cc: linux-mmc@xxxxxxxxxxxxxxx
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Mikko Rapeli <mikko.rapeli@xxxxxxxxxx>
Not used to seeing blank lines after Fixes:, Closes, Link: tags,
nevertheless:
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> drivers/mmc/core/block.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
> index 32d49100dff5..0df627de9cee 100644
> --- a/drivers/mmc/core/block.c
> +++ b/drivers/mmc/core/block.c
> @@ -413,7 +413,7 @@ static struct mmc_blk_ioc_data *mmc_blk_ioctl_copy_from_user(
> struct mmc_blk_ioc_data *idata;
> int err;
>
> - idata = kmalloc(sizeof(*idata), GFP_KERNEL);
> + idata = kzalloc(sizeof(*idata), GFP_KERNEL);
> if (!idata) {
> err = -ENOMEM;
> goto out;
