diff options
Diffstat (limited to 'drivers/char/tpm/tpm_tis.c')
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 3615d210e603..e4e0c65df768 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -400,6 +400,19 @@ out: return rc; } +static bool tpm_tis_req_canceled(struct tpm_chip *chip, u8 status) +{ + switch (chip->vendor.manufacturer_id) { + case TPM_VID_WINBOND: + return ((status == TPM_STS_VALID) || + (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY))); + case TPM_VID_STM: + return (status == (TPM_STS_VALID | TPM_STS_COMMAND_READY)); + default: + return (status == TPM_STS_COMMAND_READY); + } +} + static const struct file_operations tis_ops = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -445,7 +458,7 @@ static struct tpm_vendor_specific tpm_tis = { .cancel = tpm_tis_ready, .req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID, .req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID, - .req_canceled = TPM_STS_COMMAND_READY, + .req_canceled = tpm_tis_req_canceled, .attr_group = &tis_attr_grp, .miscdev = { .fops = &tis_ops,}, |