2021-06-04 10:23:45

by Yang Li

Subject: [PATCH 2/2] NTB: Fix an error code in ntb_msit_probe()

When the value of nm->isr_ctx is false, the value of ret is 0.
So, we set ret to -ENOMEM to indicate this error.

Clean up smatch warning:
drivers/ntb/test/ntb_msi_test.c:373 ntb_msit_probe() warn: missing error
code 'ret'.

Reported-by: Abaci Robot <[email protected]>
Signed-off-by: Yang Li <[email protected]>
---
drivers/ntb/test/ntb_msi_test.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ntb/test/ntb_msi_test.c b/drivers/ntb/test/ntb_msi_test.c
index 7095ecd..5f9e0be 100644
--- a/drivers/ntb/test/ntb_msi_test.c
+++ b/drivers/ntb/test/ntb_msi_test.c
@@ -369,8 +369,10 @@ static int ntb_msit_probe(struct ntb_client *client, struct ntb_dev *ntb)
if (ret)
goto remove_dbgfs;

- if (!nm->isr_ctx)
+ if (!nm->isr_ctx) {
+ return -ENOMEM;
goto remove_dbgfs;
+ }

ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);

--
1.8.3.1

2021-06-04 15:21:07

by Logan Gunthorpe

Subject: Re: [PATCH 2/2] NTB: Fix an error code in ntb_msit_probe()

On 2021-06-04 4:20 a.m., Yang Li wrote:
> When the value of nm->isr_ctx is false, the value of ret is 0.
> So, we set ret to -ENOMEM to indicate this error.
>
> Clean up smatch warning:
> drivers/ntb/test/ntb_msi_test.c:373 ntb_msit_probe() warn: missing error
> code 'ret'.
>
> Reported-by: Abaci Robot <[email protected]>
> Signed-off-by: Yang Li <[email protected]>
> ---
> drivers/ntb/test/ntb_msi_test.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/ntb/test/ntb_msi_test.c b/drivers/ntb/test/ntb_msi_test.c
> index 7095ecd..5f9e0be 100644
> --- a/drivers/ntb/test/ntb_msi_test.c
> +++ b/drivers/ntb/test/ntb_msi_test.c
> @@ -369,8 +369,10 @@ static int ntb_msit_probe(struct ntb_client *client, struct ntb_dev *ntb)
> if (ret)
> goto remove_dbgfs;
>
> - if (!nm->isr_ctx)
> + if (!nm->isr_ctx) {
> + return -ENOMEM;
> goto remove_dbgfs;

I think you made a typo here. You probably meant ret = -ENOMEM.

Thanks,

Logan