@@ -436,10 +436,19 @@ static int tpm_transmit(struct tpm_dev *dev, uint8_t* buf, size_t cmdlen,
if (rc < 0)
goto out;
- DBG("step 3/5: write tpmgo\n");
+ DBG("step 3/5: write sts.go\n");
rc = tpm_status_write_byte(TPM_STS_GO);
- if (rc < 0)
+ if (rc < 0) {
+ /**
+ * @fwts-label TPMWriteGo
+ * @fwts-advice Either the tpm device or the tpm-i2c interface
+ * doesn't seem to be working properly. Check the return code
+ * (rc) for further details.
+ */
+ prlog(PR_ERR, "NUVOTON: fail to write sts.go, rc=%d\n", rc);
+ rc = STB_DRIVER_ERROR;
goto out;
+ }
DBG("step 4/5: read FIFO\n");
rc = tpm_read_fifo(buf, buflen);
This handles errors returned by the tpm-i2c interface after writing sts.go in tpm_transmit(). Fixes: 56ad053c3e8bf0764ad5878cb018f00a389d30cf Signed-off-by: Claudio Carvalho <cclaudio@linux.vnet.ibm.com> --- libstb/drivers/tpm_i2c_nuvoton.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)