linux-kernel - RE: [PATCH] scsi: fnic: return error if vmalloc failed

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Date:   Wed, 29 Nov 2023 02:27:05 +0000
From:   "Karan Tilak Kumar (kartilak)" <kartilak@...co.com>
To:     Artem Chernyshev <artem.chernyshev@...-soft.ru>,
        "Satish Kharat (satishkh)" <satishkh@...co.com>,
        "Sesidhar Baddela (sebaddel)" <sebaddel@...co.com>
CC:     "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "lvc-project@...uxtesting.org" <lvc-project@...uxtesting.org>
Subject: RE: [PATCH] scsi: fnic: return error if vmalloc failed

On Tuesday, November 28, 2023 3:10 AM, Artem Chernyshev <artem.chernyshev@...-soft.ru> wrote:
>
> In fnic_init_module() exists redundant check for return value from fnic_debugfs_init(), because at moment it only can return zero. It make sense to process theoretical vmalloc failure.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: 9730ddfb123d ("scsi: fnic: remove redundant assignment of variable rc")
> Signed-off-by: Artem Chernyshev <artem.chernyshev@...-soft.ru>
> ---
> drivers/scsi/fnic/fnic_debugfs.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c
> index c4d9ed0d7d75..cf2601bf170a 100644
> --- a/drivers/scsi/fnic/fnic_debugfs.c
> +++ b/drivers/scsi/fnic/fnic_debugfs.c
> @@ -52,9 +52,10 @@ int fnic_debugfs_init(void)
> fc_trc_flag->fnic_trace = 2;
> fc_trc_flag->fc_trace = 3;
> fc_trc_flag->fc_clear = 4;
> +             return 0;
> }
>
> -     return 0;
> +     return -ENOMEM;
> }
>
> /*
> --
> 2.37.3

Looks good to me.
Reviewed-by: Karan Tilak Kumar <kartilak@...co.com>

Regards,
Karan