Re: [PATCH v5 05/17] tpm: print tpm2_commit_space() error inside tpm2_commit_space()

[Stefan Berger]

On 11/8/18 9:15 AM, Jarkko Sakkinen wrote:
> The error logging for tpm2_commit_space() is in a wrong place. This
> commit moves it inside that function.
>
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

Reviewed-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>


> ---
>   drivers/char/tpm/tpm-interface.c | 8 ++------
>   drivers/char/tpm/tpm2-space.c    | 9 ++++++---
>   2 files changed, 8 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
> index c9efd1b9fd2c..7ffb16edab6f 100644
> --- a/drivers/char/tpm/tpm-interface.c
> +++ b/drivers/char/tpm/tpm-interface.c
> @@ -268,14 +268,10 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip,
>   		rc = -EFAULT;
>
>   out_space:
> -	if (rc) {
> +	if (rc)
>   		tpm2_flush_space(chip);
> -	} else {
> +	else
>   		rc = tpm2_commit_space(chip, space, ordinal, buf, &len);
> -		if (rc)
> -			dev_err(&chip->dev, "tpm2_commit_space: error %d\n",
> -				rc);
> -	}
>
>   out_idle:
>   	/* may fail but do not override previous error value in rc */
> diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c
> index d53c882268ff..3d5f9577e5de 100644
> --- a/drivers/char/tpm/tpm2-space.c
> +++ b/drivers/char/tpm/tpm2-space.c
> @@ -501,19 +501,19 @@ int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space,
>   	rc = tpm2_map_response_header(chip, cc, buf, *bufsiz);
>   	if (rc) {
>   		tpm2_flush_space(chip);
> -		return rc;
> +		goto out;
>   	}
>
>   	rc = tpm2_map_response_body(chip, cc, buf, *bufsiz);
>   	if (rc) {
>   		tpm2_flush_space(chip);
> -		return rc;
> +		goto out;
>   	}
>
>   	rc = tpm2_save_space(chip);
>   	if (rc) {
>   		tpm2_flush_space(chip);
> -		return rc;
> +		goto out;
>   	}
>
>   	*bufsiz = be32_to_cpu(header->length);
> @@ -526,4 +526,7 @@ int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space,
>   	memcpy(space->session_buf, chip->work_space.session_buf, PAGE_SIZE);
>
>   	return 0;
> +out:
> +	dev_err(&chip->dev, "%s: error %d\n", __func__, rc);
> +	return rc;
>   }