Re: [PATCH 2/2] mmc: sdhci-of-arasan: Make sure clk_init_data is fully initialized

[Adrian Hunter <adrian.hunter@intel.com>]

On 21/08/2026 13:06, Geert Uytterhoeven wrote:
> The clk_init_data structure contains several mutually-exclusive members
> for different methods to specify the possible parents of a clock,
> prompting drivers to initialize only the members they need.  However,
> not initializing all members may cause subtle issues, which are only
> exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is
> enabled.
> 
> Make sure all members are fully initialized, to avoid such bugs, and to
> prevent future breakage when converting drivers to a different method
> for specifying the parents.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Acked-by: Adrian Hunter <adrian.hunter@intel.com>

> ---
> Compile-tested only.
> ---
>  drivers/mmc/host/sdhci-of-arasan.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
> index 4ca73e7d799ead0d..0ee22923ad568124 100644
> --- a/drivers/mmc/host/sdhci-of-arasan.c
> +++ b/drivers/mmc/host/sdhci-of-arasan.c
> @@ -1552,8 +1552,8 @@ sdhci_arasan_register_sdcardclk(struct sdhci_arasan_data *sdhci_arasan,
>  				struct device *dev)
>  {
>  	struct sdhci_arasan_clk_data *clk_data = &sdhci_arasan->clk_data;
> +	struct clk_init_data sdcardclk_init = {};
>  	struct device_node *np = dev->of_node;
> -	struct clk_init_data sdcardclk_init;
>  	const char *parent_clk_name;
>  	int ret;
>  
> @@ -1604,8 +1604,8 @@ sdhci_arasan_register_sampleclk(struct sdhci_arasan_data *sdhci_arasan,
>  				struct device *dev)
>  {
>  	struct sdhci_arasan_clk_data *clk_data = &sdhci_arasan->clk_data;
> +	struct clk_init_data sampleclk_init = {};
>  	struct device_node *np = dev->of_node;
> -	struct clk_init_data sampleclk_init;
>  	const char *parent_clk_name;
>  	int ret;
>