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authorLeah Rowe <leah@libreboot.org>2022-12-01 13:16:05 +0000
committerLeah Rowe <leah@libreboot.org>2022-12-01 13:16:05 +0000
commit85937f3f4c3f53b281b6a2f453e2273217e42aa1 (patch)
treec863ffb884533f693dd177951c98b3d1a9a03567 /util/nvmutil/README.md
parentec082429ab35a45d8a362703c26932206b5b1747 (diff)
util/nvmutil: reset errno on cmd_swap
If one of the checksums was valid, but the other was not, errno would be set to E_CANCELED, but then the buffer would be modified anyway; this is acceptable behaviour, and errno would later be reset writing the GBE file, which is done only on the condition that the buffer was modified, but it's also a good idea to reset it here just in case. This is not a bugfix, and no behavioural changes will be observed by the user, but this may *prevent* a bug in the future, so let's pre-fix that bug now.
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