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

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

[Wang Hai]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.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 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;
 	}
 
-- 
2.17.1

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

[Stefan Berger]

On 11/24/20 8:52 AM, Wang Hai wrote:
> Fix to return a negative error code from the error handling
> case instead of 0, as done elsewhere in this function.
>
> Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wang Hai <wanghai38@huawei.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 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;
>   	}
>   

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

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

[Jarkko Sakkinen]

On Tue, 2020-11-24 at 21:52 +0800, Wang Hai wrote:
> Fix to return a negative error code from the error handling
> case instead of 0, as done elsewhere in this function.
> 
> Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before
> proceeding")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wang Hai <wanghai38@huawei.com>

Provide a reasoning for -ETIMEOUT in the commit message.

/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;
>         }
>  

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

[Stefan Berger]

On 11/25/20 10:35 PM, Jarkko Sakkinen wrote:
> On Tue, 2020-11-24 at 21:52 +0800, Wang Hai wrote:
>> Fix to return a negative error code from the error handling
>> case instead of 0, as done elsewhere in this function.
>>
>> Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before
>> proceeding")
>> Reported-by: Hulk Robot <hulkci@huawei.com>
>> Signed-off-by: Wang Hai <wanghai38@huawei.com>
> Provide a reasoning for -ETIMEOUT in the commit message.
>
> /Jarkko


Was this patch ever applied? I don't seem to find the infradead git tree ...