[U-Boot] [U-Boot, 1/2] tools: image: allow to sign image nodes without -K option

[Tom Rini]

On Fri, Oct 27, 2017 at 03:04:20PM +0900, Masahiro Yamada wrote:

> If -K option is missing when you sign image nodes, it fails with
> an unclear error message:
> 
>   tools/mkimage Can't add hashes to FIT blob: -1
> 
> It is hard to figure out the cause of the failure.
> 
> In contrast, when you sign configuration nodes, -K is optional because
> fit_config_process_sig() returns successfully if keydest is unset.
> Probably this is a preferred behavior when you want to update FIT with
> the same key; you do not have to update the public key in this case.
> 
> So, this commit changes fit_image_process_sig() to continue signing
> without keydest.  If ->add_verify_data() fails, show a clearer error
> message, which has been borrowed from fit_config_process_sig().
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>

Applied to u-boot/master, thanks!

-- 
Tom
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