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[Qemu-devel] [PATCH v3 2/3] tpm: Make sure new locality passed to tpm_ti
From: |
Stefan Berger |
Subject: |
[Qemu-devel] [PATCH v3 2/3] tpm: Make sure new locality passed to tpm_tis_prep_abort() is valid |
Date: |
Tue, 4 Dec 2018 10:04:26 -0500 |
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 <address@hidden>
---
hw/tpm/tpm_tis.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index 176d424ed9..04e4ad9212 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -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 */
/*
--
2.17.1