During the process of driver probing, probe function should return < 0
for failure, otherwise kernel will treat value >= 0 as success.
Signed-off-by: Zheyu Ma <[email protected]>
---
drivers/scsi/mpi3mr/mpi3mr_os.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index f7cd70a15ea6..240bfdf9788b 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -4222,9 +4222,10 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
struct Scsi_Host *shost = NULL;
int retval = 0, i;
- if (osintfc_mrioc_security_status(pdev)) {
+ retval = osintfc_mrioc_security_status(pdev);
+ if (retval) {
warn_non_secure_ctlr = 1;
- return 1; /* For Invalid and Tampered device */
+ return retval; /* For Invalid and Tampered device */
}
shost = scsi_host_alloc(&mpi3mr_driver_template,
--
2.25.1
On Sat, Apr 9, 2022 at 7:49 AM Zheyu Ma <[email protected]> wrote:
>
> During the process of driver probing, probe function should return < 0
> for failure, otherwise kernel will treat value >= 0 as success.
>
> Signed-off-by: Zheyu Ma <[email protected]>
> ---
> drivers/scsi/mpi3mr/mpi3mr_os.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
> index f7cd70a15ea6..240bfdf9788b 100644
> --- a/drivers/scsi/mpi3mr/mpi3mr_os.c
> +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
> @@ -4222,9 +4222,10 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
> struct Scsi_Host *shost = NULL;
> int retval = 0, i;
>
> - if (osintfc_mrioc_security_status(pdev)) {
> + retval = osintfc_mrioc_security_status(pdev);
> + if (retval) {
> warn_non_secure_ctlr = 1;
> - return 1; /* For Invalid and Tampered device */
> + return retval; /* For Invalid and Tampered device */
> }
NAK. The driver has to return 1 when invalid/tampered controllers are
detected just to say the controller is held by the mpi3mr driver
without any actual operation.
>
> shost = scsi_host_alloc(&mpi3mr_driver_template,
> --
> 2.25.1
>
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On Wed, Apr 13, 2022 at 1:58 AM Sathya Prakash Veerichetty
<[email protected]> wrote:
>
> On Sat, Apr 9, 2022 at 7:49 AM Zheyu Ma <[email protected]> wrote:
> >
> > During the process of driver probing, probe function should return < 0
> > for failure, otherwise kernel will treat value >= 0 as success.
> >
> > Signed-off-by: Zheyu Ma <[email protected]>
> > ---
> > drivers/scsi/mpi3mr/mpi3mr_os.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
> > index f7cd70a15ea6..240bfdf9788b 100644
> > --- a/drivers/scsi/mpi3mr/mpi3mr_os.c
> > +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
> > @@ -4222,9 +4222,10 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
> > struct Scsi_Host *shost = NULL;
> > int retval = 0, i;
> >
> > - if (osintfc_mrioc_security_status(pdev)) {
> > + retval = osintfc_mrioc_security_status(pdev);
> > + if (retval) {
> > warn_non_secure_ctlr = 1;
> > - return 1; /* For Invalid and Tampered device */
> > + return retval; /* For Invalid and Tampered device */
> > }
> NAK. The driver has to return 1 when invalid/tampered controllers are
> detected just to say the controller is held by the mpi3mr driver
> without any actual operation.
Thanks for your explanation, I will drop this patch.
Zheyu Ma