[PATCH 2/4] mmc: sandbox: Initialize backing buffer
Jaehoon Chung
jh80.chung at gmail.com
Fri Apr 22 14:03:25 CEST 2022
On 3/31/22 01:54, Sean Anderson wrote:
> Private data is initialized to all zeros by DM. Malloc does not do this.
> Initialize it. This fixes partition detection logic from trying to detect
> partitions in uninitialized memory.
>
> Fixes: 0bf61aced2 ("sandbox: mmc: Support a backing file")
> Signed-off-by: Sean Anderson <seanga2 at gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>
Best Regards,
Jaehoon Chung
> ---
>
> drivers/mmc/sandbox_mmc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/sandbox_mmc.c b/drivers/mmc/sandbox_mmc.c
> index 35159451e1..60a6be0add 100644
> --- a/drivers/mmc/sandbox_mmc.c
> +++ b/drivers/mmc/sandbox_mmc.c
> @@ -178,7 +178,7 @@ static int sandbox_mmc_probe(struct udevice *dev)
> priv->csize = 0;
> priv->size = (priv->csize + 1) * SIZE_MULTIPLE; /* 1 MiB */
>
> - priv->buf = malloc(priv->size);
> + priv->buf = calloc(1, priv->size);
> if (!priv->buf) {
> log_err("%s: Not enough memory (%x bytes)\n",
> dev->name, priv->size);
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