[U-Boot] [PATCH 1/7] mmc: atmel_sdhci: fix uninitialized pointer deref on probe

[Eugen.Hristev at microchip.com]

Tested-by: Eugen Hristev <eugen.hristev at microchip.com>

This has to go as soon as possible into the tree.
The at91 boards do not boot without this. The commit checking for 
sdhci-caps-mask introduces a crash at this point.

I can take it through atmel tree if needed.

Thanks,
Eugen

On 06.08.2019 05:47, Peng Fan wrote:

> 
> Commit 3d296365e4e8 ("mmc: sdhci: Add support for
> sdhci-caps-mask") sdhci_setup_cfg() expects a valid sdhci_host mmc
> field.
> 
> Fixes: 3d296365e4e8 ("mmc: sdhci: Add support for sdhci-caps-mask")
> Cc: Faiz Abbas <faiz_abbas at ti.com>
> Cc: Wenyou Yang <wenyou.yang at atmel.com>
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
>   drivers/mmc/atmel_sdhci.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/atmel_sdhci.c b/drivers/mmc/atmel_sdhci.c
> index 4be47ba75e..d930ed8da0 100644
> --- a/drivers/mmc/atmel_sdhci.c
> +++ b/drivers/mmc/atmel_sdhci.c
> @@ -88,13 +88,13 @@ static int atmel_sdhci_probe(struct udevice *dev)
>   		return -EINVAL;
>   
>   	host->max_clk = max_clk;
> +	host->mmc = &plat->mmc;
> +	host->mmc->dev = dev;
>   
>   	ret = sdhci_setup_cfg(&plat->cfg, host, 0, ATMEL_SDHC_MIN_FREQ);
>   	if (ret)
>   		return ret;
>   
> -	host->mmc = &plat->mmc;
> -	host->mmc->dev = dev;
>   	host->mmc->priv = host;
>   	upriv->mmc = host->mmc;
>   
>