[RFC 09/14] efi_loader: do not install dtb if bootmgr fails

[Ilias Apalodimas]

On Fri, Apr 26, 2024 at 04:13:16PM +0200, Heinrich Schuchardt wrote:
> If the UEFI boot manager fails there is no point in installing the
> device-tree as a configuration table.
>
> Unload image if device-tree cannot be installed.
>
> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
> ---
>  lib/efi_loader/efi_bootmgr.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/lib/efi_loader/efi_bootmgr.c b/lib/efi_loader/efi_bootmgr.c
> index c64cbe82402..d924810a94b 100644
> --- a/lib/efi_loader/efi_bootmgr.c
> +++ b/lib/efi_loader/efi_bootmgr.c
> @@ -1209,15 +1209,21 @@ efi_status_t efi_bootmgr_run(void *fdt)
>  		return CMD_RET_FAILURE;
>  	}
>
> -	ret = efi_install_fdt(fdt);
> -	if (ret != EFI_SUCCESS)
> -		return ret;
> -
>  	ret = efi_bootmgr_load(&handle, &load_options);
>  	if (ret != EFI_SUCCESS) {
>  		log_notice("EFI boot manager: Cannot load any image\n");
>  		return ret;
>  	}
>
> +	ret = efi_install_fdt(fdt);
> +	if (ret != EFI_SUCCESS) {
> +		if (EFI_CALL(efi_unload_image(*handle)) == EFI_SUCCESS)
> +			free(load_options);
> +		else
> +			log_err("Unloading image failed\n");
> +
> +		return ret;
> +	}
> +
>  	return do_bootefi_exec(handle, load_options);
>  }
> --
> 2.43.0
>

Reviewed-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>