Re: [PATCH -next] tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()

[Stefan Berger <stefanb@linux.ibm.com>]

On 3/18/22 02:02, Xiu Jianfeng wrote:
> Currently it returns zero when CRQ response timed out, it should return
> an error code instead.
> 
> Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
> Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>

Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>

> ---
>   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 3af4c07a9342..d3989b257f42 100644
> --- a/drivers/char/tpm/tpm_ibmvtpm.c
> +++ b/drivers/char/tpm/tpm_ibmvtpm.c
> @@ -681,6 +681,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
>   	if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
>   				ibmvtpm->rtce_buf != NULL,
>   				HZ)) {
> +		rc = -ENODEV;
>   		dev_err(dev, "CRQ response timed out\n");
>   		goto init_irq_cleanup;
>   	}