diff options
Diffstat (limited to 'drivers/char/tpm/tpm-chip.c')
| -rw-r--r-- | drivers/char/tpm/tpm-chip.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c index 7df7abaf3e52..e25daf2396d3 100644 --- a/drivers/char/tpm/tpm-chip.c +++ b/drivers/char/tpm/tpm-chip.c @@ -168,6 +168,11 @@ int tpm_try_get_ops(struct tpm_chip *chip) goto out_ops; mutex_lock(&chip->tpm_mutex); + + /* tmp_chip_start may issue IO that is denied while suspended */ + if (chip->flags & TPM_CHIP_FLAG_SUSPENDED) + goto out_lock; + rc = tpm_chip_start(chip); if (rc) goto out_lock; @@ -300,6 +305,7 @@ int tpm_class_shutdown(struct device *dev) down_write(&chip->ops_sem); if (chip->flags & TPM_CHIP_FLAG_TPM2) { if (!tpm_chip_start(chip)) { + tpm2_end_auth_session(chip); tpm2_shutdown(chip, TPM2_SU_CLEAR); tpm_chip_stop(chip); } |