[RFC 08/12] efi/arm: Check return value of init_new_context()

[Ard Biesheuvel]

On Thu, 1 Oct 2026, at 13:06, Kristina Martšenko wrote:
> init_new_context() will soon be able to return an error. Check for
> errors before continuing.
>
> Signed-off-by: Kristina Martšenko <kristina.martsenko at arm.com>
> ---
>  drivers/firmware/efi/arm-runtime.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/efi/arm-runtime.c 
> b/drivers/firmware/efi/arm-runtime.c
> index 3167cab62014..7ef29cd0bfb7 100644
> --- a/drivers/firmware/efi/arm-runtime.c
> +++ b/drivers/firmware/efi/arm-runtime.c
> @@ -55,7 +55,8 @@ static bool __init efi_virtmap_init(void)
> 
>  	efi_mm.pgd = pgd_alloc(&efi_mm);
>  	mm_init_cpumask(&efi_mm);
> -	init_new_context(NULL, &efi_mm);
> +	if (init_new_context(NULL, &efi_mm))
> +		return false;
> 

Can we make this a WARN_ON() so any failures are not misidentified
as invalid or missing virtual mappings?

With that,

Acked-by: Ard Biesheuvel <ardb at kernel.org>