diff mbox series

scsi: qla2xxx: fix return of uninitialized value in rval

Message ID 20201008183239.200358-1-colin.king@canonical.com (mailing list archive)
State Accepted
Headers show
Series scsi: qla2xxx: fix return of uninitialized value in rval | expand

Commit Message

Colin King Oct. 8, 2020, 6:32 p.m. UTC
From: Colin Ian King <colin.king@canonical.com>

A previous change removed the initialization of rval and there is
now an error where an uninitialized rval is being returned on an
error return path. Fix this by returning -ENODEV.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: b994718760fa ("scsi: qla2xxx: Use constant when it is known")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/scsi/qla2xxx/qla_nvme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Himanshu Madhani Oct. 8, 2020, 6:40 p.m. UTC | #1
> On Oct 8, 2020, at 1:32 PM, Colin King <colin.king@canonical.com> wrote:
> 
> From: Colin Ian King <colin.king@canonical.com>
> 
> A previous change removed the initialization of rval and there is
> now an error where an uninitialized rval is being returned on an
> error return path. Fix this by returning -ENODEV.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: b994718760fa ("scsi: qla2xxx: Use constant when it is known")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
> drivers/scsi/qla2xxx/qla_nvme.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
> index ae47e0eb0311..1f9005125313 100644
> --- a/drivers/scsi/qla2xxx/qla_nvme.c
> +++ b/drivers/scsi/qla2xxx/qla_nvme.c
> @@ -561,7 +561,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
> 	vha = fcport->vha;
> 
> 	if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
> -		return rval;
> +		return -ENODEV;
> 
> 	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
> 	    (qpair && !qpair->fw_started) || fcport->deleted)
> -- 
> 2.27.0
> 

Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>

--
Himanshu Madhani	 Oracle Linux Engineering
Pavel Machek Oct. 8, 2020, 6:41 p.m. UTC | #2
On Thu 2020-10-08 19:32:39, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> A previous change removed the initialization of rval and there is
> now an error where an uninitialized rval is being returned on an
> error return path. Fix this by returning -ENODEV.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: b994718760fa ("scsi: qla2xxx: Use constant when it is known")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Acked-by: Pavel Machek (CIP) <pavel@denx.de>

And sorry, I did patch against mainline, and this got added in -next
in the meantime.

> index ae47e0eb0311..1f9005125313 100644
> --- a/drivers/scsi/qla2xxx/qla_nvme.c
> +++ b/drivers/scsi/qla2xxx/qla_nvme.c
> @@ -561,7 +561,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
>  	vha = fcport->vha;
>  
>  	if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
> -		return rval;
> +		return -ENODEV;
>  
>  	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
>  	    (qpair && !qpair->fw_started) || fcport->deleted)
> -- 
> 2.27.0
>
Colin King Oct. 8, 2020, 6:58 p.m. UTC | #3
On 08/10/2020 19:41, Pavel Machek wrote:
> On Thu 2020-10-08 19:32:39, Colin King wrote:
>> From: Colin Ian King <colin.king@canonical.com>
>>
>> A previous change removed the initialization of rval and there is
>> now an error where an uninitialized rval is being returned on an
>> error return path. Fix this by returning -ENODEV.
>>
>> Addresses-Coverity: ("Uninitialized scalar variable")
>> Fixes: b994718760fa ("scsi: qla2xxx: Use constant when it is known")
>> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> 
> Acked-by: Pavel Machek (CIP) <pavel@denx.de>
> 
> And sorry, I did patch against mainline, and this got added in -next
> in the meantime.

Ah, that explains it. No problem, Coverity is good at finding buglets

Colin

> 
>> index ae47e0eb0311..1f9005125313 100644
>> --- a/drivers/scsi/qla2xxx/qla_nvme.c
>> +++ b/drivers/scsi/qla2xxx/qla_nvme.c
>> @@ -561,7 +561,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
>>  	vha = fcport->vha;
>>  
>>  	if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
>> -		return rval;
>> +		return -ENODEV;
>>  
>>  	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
>>  	    (qpair && !qpair->fw_started) || fcport->deleted)
>> -- 
>> 2.27.0
>>
>
Martin K. Petersen Oct. 8, 2020, 8:50 p.m. UTC | #4
Colin,

> A previous change removed the initialization of rval and there is now
> an error where an uninitialized rval is being returned on an error
> return path. Fix this by returning -ENODEV.

Applied to 5.10/scsi-staging, thanks!
Martin K. Petersen Oct. 13, 2020, 10:42 p.m. UTC | #5
On Thu, 8 Oct 2020 19:32:39 +0100, Colin King wrote:

> A previous change removed the initialization of rval and there is
> now an error where an uninitialized rval is being returned on an
> error return path. Fix this by returning -ENODEV.

Applied to 5.10/scsi-queue, thanks!

[1/1] scsi: qla2xxx: Fix return of uninitialized value in rval
      https://git.kernel.org/mkp/scsi/c/1ef16a407f54
diff mbox series

Patch

diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index ae47e0eb0311..1f9005125313 100644
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -561,7 +561,7 @@  static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
 	vha = fcport->vha;
 
 	if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
-		return rval;
+		return -ENODEV;
 
 	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
 	    (qpair && !qpair->fw_started) || fcport->deleted)