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authorMarc-André Lureau <marcandre.lureau@redhat.com>2017-11-06 19:39:00 +0100
committerStefan Berger <stefanb@linux.vnet.ibm.com>2017-12-14 23:39:13 -0500
commit8a89c9ac15981c2d15ce4ee6d6ad67da58824a04 (patch)
tree0934508cd312e375675a7977026be1d77dc346d3 /backends
parent67af320cd653a107c0bbdf0d2e6c51b24403c64d (diff)
tpm-backend: store TPMIf interface, improve backend_init()
Store the TPM interface, the actual object may be different from TPMState. Keep a reference on the interface, and check the backend wasn't already initialized. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Diffstat (limited to 'backends')
-rw-r--r--backends/tpm.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/backends/tpm.c b/backends/tpm.c
index 1e416d7f90..86f0e7e915 100644
--- a/backends/tpm.c
+++ b/backends/tpm.c
@@ -43,9 +43,15 @@ enum TpmType tpm_backend_get_type(TPMBackend *s)
return k->type;
}
-int tpm_backend_init(TPMBackend *s, TPMState *state)
+int tpm_backend_init(TPMBackend *s, TPMIf *tpmif)
{
- s->tpm_state = state;
+ if (s->tpmif) {
+ return -1;
+ }
+
+ s->tpmif = tpmif;
+ object_ref(OBJECT(tpmif));
+
s->had_startup_error = false;
return 0;
@@ -193,6 +199,7 @@ static void tpm_backend_instance_finalize(Object *obj)
{
TPMBackend *s = TPM_BACKEND(obj);
+ object_unref(OBJECT(s->tpmif));
g_free(s->id);
tpm_backend_thread_end(s);
}