Luca Boccassi
7b7599b72d
When a variable exists but is empty, the initial size-query
GetVariable() in efivar_get_raw_full() returns EFI_SUCCESS instead of
EFI_BUFFER_TOO_SMALL: the zero-length payload already "fits" the
zero-length query buffer. The helper returns success, but does not
initialize the return parameters.
Handle a couple of corner cases by checking the return size.
Follow-up for a409607489
System and Service Manager
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