[PATCH 1/2] ARM: versatile: clock: Make sure clk_init_data is fully initialized

Liviu Dudau liviu.dudau at arm.com
Fri Aug 21 03:59:32 PDT 2026


On Fri, Aug 21, 2026 at 10:52:24AM +0200, 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 at glider.be>

Reviewed-by: Liviu Dudau <liviu.dudau at arm.com>

Best regards,
Liviu

> ---
> Compile-tested only.
> ---
>  arch/arm/mach-versatile/spc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-versatile/spc.c b/arch/arm/mach-versatile/spc.c
> index 7c3191aa3e12d1f3..d3f84819532fa498 100644
> --- a/arch/arm/mach-versatile/spc.c
> +++ b/arch/arm/mach-versatile/spc.c
> @@ -522,7 +522,7 @@ static struct clk_ops clk_spc_ops = {
>  
>  static struct clk *ve_spc_clk_register(struct device *cpu_dev)
>  {
> -	struct clk_init_data init;
> +	struct clk_init_data init = {};
>  	struct clk_spc *spc;
>  
>  	spc = kzalloc_obj(*spc);
> -- 
> 2.43.0
> 

-- 
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