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Commit 6793d017 authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Tom Rini
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tools: image: allow to sign image nodes without -K option


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: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 1d88a99d
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