From: Himanshu Madhani <himanshu.madhani@oracle.com>
To: trix@redhat.com
Cc: Nilesh Javali <njavali@marvell.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
natechancellor@gmail.com, ndesaulniers@google.com,
GR-QLogic-Storage-Upstream@marvell.com,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
clang-built-linux@googlegroups.com
Subject: Re: [PATCH] scsi: qla2xxx: initialize value
Date: Wed, 7 Oct 2020 08:32:42 -0500 [thread overview]
Message-ID: <2E536F63-9F97-4B80-8538-D3176650CC70@oracle.com> (raw)
In-Reply-To: <20201005144544.25335-1-trix@redhat.com>
> On Oct 5, 2020, at 9:45 AM, trix@redhat.com wrote:
>
> From: Tom Rix <trix@redhat.com>
>
> clang static analysis reports this problem:
>
> qla_nx2.c:694:3: warning: 6th function call argument is
> an uninitialized value
> ql_log(ql_log_fatal, vha, 0xb090,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> In qla8044_poll_reg(), when reading the reg fails, the
> error is reported by reusing the timeout error reporter.
> Because the value is unset, a garbage value will be
> reported. So initialize the value.
>
> Signed-off-by: Tom Rix <trix@redhat.com>
> ---
> drivers/scsi/qla2xxx/qla_nx2.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/qla2xxx/qla_nx2.c b/drivers/scsi/qla2xxx/qla_nx2.c
> index 3a415b12dcec..01ccd4526707 100644
> --- a/drivers/scsi/qla2xxx/qla_nx2.c
> +++ b/drivers/scsi/qla2xxx/qla_nx2.c
> @@ -659,7 +659,7 @@ static int
> qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr,
> int duration, uint32_t test_mask, uint32_t test_result)
> {
> - uint32_t value;
> + uint32_t value = 0;
> int timeout_error;
> uint8_t retries;
> int ret_val = QLA_SUCCESS;
> --
> 2.18.1
>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
--
Himanshu Madhani Oracle Linux Engineering
next prev parent reply other threads:[~2020-10-07 13:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 14:45 trix
2020-10-07 13:32 ` Himanshu Madhani [this message]
2020-10-08 2:21 ` Martin K. Petersen
2020-10-13 22:43 ` Martin K. Petersen
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