On 4/26/2017 3:18 PM, Jerry Snitselaar wrote:
>
> Maybe the following?
>
>
> diff --git a/drivers/char/tpm/tpm-interface.c
> b/drivers/char/tpm/tpm-interface.c
> index bd2128e0b56c..e6e60f9f428c 100644
> --- a/drivers/char/tpm/tpm-interface.c
> +++ b/drivers/char/tpm/tpm-interface.c
> @@ -453,9 +453,14 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const
> void *buf,
> return -EFAULT;
>
> err = be32_to_cpu(header->return_code);
> - if (err != 0 && desc)
> - dev_err(&chip->dev, "A TPM error (%d) occurred %s\n", err,
> - desc);
> + if (err != 0 && desc) {
> + if (chip->flags & TPM_CHIP_FLAG_TPM2)
> + dev_err(&chip->dev, "A TPM error (0x%x) occurred
> %s\n", err,
> + desc);
> + else
> + dev_err(&chip->dev, "A TPM error (%d) occurred %s\n",
> err,
> + desc);
> + }
> if (err)
> return err;
>
I think that's a good idea.
I have a utility that parses the fields out of the TPM 2.0 error codes
and prints the text. It expects hex values, as does the specification.
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