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tpm: Make sure new locality passed to tpm_tis_prep_abort() is valid

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Make sure that the new locality passed to tpm_tis_prep_abort()
is valid.

Add a comment to aborting_locty that it may be any locality, including
TPM_TIS_NO_LOCALITY.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Stefan Berger 2018-11-20 13:14:51 -05:00
parent 0f5faee359
commit e92b63ea61
1 changed files with 3 additions and 1 deletions
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4
hw/tpm/tpm_tis.c
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@ -263,7 +263,9 @@ static void tpm_tis_prep_abort(TPMState *s, uint8_t locty, uint8_t newlocty)
{
uint8_t busy_locty;
s->aborting_locty = locty;
assert(TPM_TIS_IS_VALID_LOCTY(newlocty));
s->aborting_locty = locty; /* may also be TPM_TIS_NO_LOCALITY */
s->next_locty = newlocty; /* locality after successful abort */
/*