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* [patch] scsi/qla2xxx: check for null consistently
@ 2010-05-22 20:18 Dan Carpenter
  2010-05-25 18:48 ` Giridhar Malavali
  0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2010-05-22 20:18 UTC (permalink / raw)
  To: Andrew Vasquez
  Cc: linux-driver, James E.J. Bottomley, Giridhar Malavali,
	Anirban Chakraborty, linux-scsi, kernel-janitors

We assume that "ha->cs84xx" can be null on the previous line, so we
should check it here as well.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 3b70860..ad22baa 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1211,7 +1211,7 @@ qla24xx_84xx_fw_version_show(struct device *dev,
 	if (ha->cs84xx && ha->cs84xx->op_fw_version = 0)
 		rval = qla84xx_verify_chip(vha, status);
 
-	if ((rval = QLA_SUCCESS) && (status[0] = 0))
+	if (ha->cs84xx && rval = QLA_SUCCESS && status[0] = 0)
 		return snprintf(buf, PAGE_SIZE, "%u\n",
 			(uint32_t)ha->cs84xx->op_fw_version);
 

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [patch] scsi/qla2xxx: check for null consistently
  2010-05-22 20:18 [patch] scsi/qla2xxx: check for null consistently Dan Carpenter
@ 2010-05-25 18:48 ` Giridhar Malavali
  0 siblings, 0 replies; 2+ messages in thread
From: Giridhar Malavali @ 2010-05-25 18:48 UTC (permalink / raw)
  To: Dan Carpenter, Andrew Vasquez
  Cc: Linux Driver, James E.J. Bottomley, Anirban Chakraborty,
	LinuxSCSI, kernel-janitors@vger.kernel.org




On 5/22/10 1:18 PM, "Dan Carpenter" <error27@gmail.com> wrote:

> We assume that "ha->cs84xx" can be null on the previous line, so we
> should check it here as well.
> 
> Signed-off-by: Dan Carpenter <error27@gmail.com>
> 
> diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
> index 3b70860..ad22baa 100644
> --- a/drivers/scsi/qla2xxx/qla_attr.c
> +++ b/drivers/scsi/qla2xxx/qla_attr.c
> @@ -1211,7 +1211,7 @@ qla24xx_84xx_fw_version_show(struct device *dev,
>         if (ha->cs84xx && ha->cs84xx->op_fw_version = 0)
>                 rval = qla84xx_verify_chip(vha, status);
> 
> -       if ((rval = QLA_SUCCESS) && (status[0] = 0))
> +       if (ha->cs84xx && rval = QLA_SUCCESS && status[0] = 0)
>                 return snprintf(buf, PAGE_SIZE, "%u\n",
>                         (uint32_t)ha->cs84xx->op_fw_version);
> 

The checking for ha->cs84xx is redundant here since earlier check make sure
that this code does not execute for non ISP 84xx ISPs. I will cleanup and
resubmit the changes.



^ permalink raw reply	[flat|nested] 2+ messages in thread

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2010-05-22 20:18 [patch] scsi/qla2xxx: check for null consistently Dan Carpenter
2010-05-25 18:48 ` Giridhar Malavali

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