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-rw-r--r--src/security/tpm/tspi/tspi.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/src/security/tpm/tspi/tspi.c b/src/security/tpm/tspi/tspi.c
index fccf224519..c1779e677a 100644
--- a/src/security/tpm/tspi/tspi.c
+++ b/src/security/tpm/tspi/tspi.c
@@ -97,10 +97,25 @@ uint32_t tpm_setup(int s3flag)
/* Handle special init for S3 resume path */
if (s3flag) {
result = tlcl_resume();
- if (result == TPM_E_INVALID_POSTINIT)
+ switch (result) {
+ case TPM_SUCCESS:
+ break;
+
+ case TPM_E_INVALID_POSTINIT:
+ /*
+ * We're on a platform where the TPM maintains power
+ * in S3, so it's already initialized.
+ */
printk(BIOS_INFO, "TPM: Already initialized.\n");
+ result = TPM_SUCCESS;
+ break;
- return TPM_SUCCESS;
+ default:
+ printk(BIOS_ERR, "TPM: Resume failed (%#x).\n", result);
+ break;
+
+ }
+ goto out;
}
result = tlcl_startup();