On 01/04/2018 02:04 PM, Jason Yan wrote:
> The intend purpose here was to goto out if smp_execute_task() returned
> error. Obviously something got screwed up. We will never get these link
> error statistics below:
>
> ~:/sys/class/sas_phy/phy-1:0:12 # cat invalid_dword_count
> 0
> ~:/sys/class/sas_phy/phy-1:0:12 # cat running_disparity_error_count
> 0
> ~:/sys/class/sas_phy/phy-1:0:12 # cat loss_of_dword_sync_count
> 0
> ~:/sys/class/sas_phy/phy-1:0:12 # cat phy_reset_problem_count
> 0
>
> Obviously we should goto error handler if smp_execute_task() returns
> non-zero.
>
> Fixes: 2908d778ab3e ("[SCSI] aic94xx: new driver")
> Signed-off-by: Jason Yan <yanaijie@xxxxxxxxxx>
> CC: John Garry <john.garry@xxxxxxxxxx>
> CC: chenqilin <chenqilin2@xxxxxxxxxx>
> CC: chenxiang <chenxiang66@xxxxxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> ---
> drivers/scsi/libsas/sas_expander.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
> index 4b0c67f..6eab487 100644
> --- a/drivers/scsi/libsas/sas_expander.c
> +++ b/drivers/scsi/libsas/sas_expander.c
> @@ -686,7 +686,7 @@ int sas_smp_get_phy_events(struct sas_phy *phy)
> res = smp_execute_task(dev, req, RPEL_REQ_SIZE,
> resp, RPEL_RESP_SIZE);
>
> - if (!res)
> + if (res)
> goto out;
>
> phy->invalid_dword_count = scsi_to_u32(&resp[12]);
>
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxxx +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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