diff options
Diffstat (limited to 'drivers/char/tpm/tpm.c')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 6a8771f47a55..32362cf35b8d 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -846,6 +846,15 @@ int tpm_do_selftest(struct tpm_chip *chip) do { rc = __tpm_pcr_read(chip, 0, digest); + if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) { + dev_info(chip->dev, + "TPM is disabled/deactivated (0x%X)\n", rc); + /* TPM is disabled and/or deactivated; driver can + * proceed and TPM does handle commands for + * suspend/resume correctly + */ + return 0; + } if (rc != TPM_WARN_DOING_SELFTEST) return rc; msleep(delay_msec); |