[PATCH v2] tpm: ibmvtpm: fix error return code in tpm_ibmvtpm_probe()

[Jarkko Sakkinen]

On Mon, Jan 25, 2021 at 08:47:53PM -0500, Stefan Berger wrote:
> From: Stefan Berger <stefanb at linux.ibm.com>
> 
> Return error code -ETIMEDOUT rather than '0' when waiting for the
> rtce_buf to be set has timed out.
> 
> Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
> Reported-by: Hulk Robot <hulkci at huawei.com>
> Signed-off-by: Wang Hai <wanghai38 at huawei.com>
> Signed-off-by: Stefan Berger <stefanb at linux.ibm.com>
> ---

Reviewed-by: Jarkko Sakkinen <jarkko at kernel.org>

Thanks! Should I add

Cc: stable at vger.kernel.org to this?

/Jarkko


>  drivers/char/tpm/tpm_ibmvtpm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
> index 994385bf37c0..813eb2cac0ce 100644
> --- a/drivers/char/tpm/tpm_ibmvtpm.c
> +++ b/drivers/char/tpm/tpm_ibmvtpm.c
> @@ -687,6 +687,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
>  				ibmvtpm->rtce_buf != NULL,
>  				HZ)) {
>  		dev_err(dev, "CRQ response timed out\n");
> +		rc = -ETIMEDOUT;
>  		goto init_irq_cleanup;
>  	}
>  
> -- 
> 2.25.4
> 
>