linux-kernel - Re: [patch] sbp-target: checking for NULL instead of IS

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Message-Id: <2A1ED37C-C556-4B3D-A59B-3369E5DFB4D5@bootc.net>
Date:	Sat, 5 Mar 2016 08:45:42 +0000
From:	Chris Boot <bootc@...tc.net>
To:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	target-devel@...r.kernel.org,
	linux1394-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [patch] sbp-target: checking for NULL instead of IS_ERR

On 5 Mar 2016, at 07:33, Nicholas A. Bellinger <nab@...ux-iscsi.org> wrote:
> 
> Hi Dan + BootC,
> 
> On Wed, 2016-03-02 at 13:09 +0300, Dan Carpenter wrote:
>> We changed this from kzalloc to sbp_mgt_get_req() so we need to change
>> from checking for NULL to check for error pointers.
>> 
>> Fixes: c064b2a78989 ('sbp-target: Conversion to percpu_ida tag pre-allocation')
>> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
>> 
>> diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
>> index 251d532..a04b0605f 100644
>> --- a/drivers/target/sbp/sbp_target.c
>> +++ b/drivers/target/sbp/sbp_target.c
>> @@ -951,7 +951,7 @@ static void tgt_agent_fetch_work(struct work_struct *work)
>> 
>> 	while (next_orb && tgt_agent_check_active(agent)) {
>> 		req = sbp_mgt_get_req(sess, sess->card, next_orb);
>> -		if (!req) {
>> +		if (IS_ERR(req)) {
>> 			spin_lock_bh(&agent->lock);
>> 			agent->state = AGENT_STATE_DEAD;
>> 			spin_unlock_bh(&agent->lock);
> 
> Fixed + folded into the original patch.
> 
> Thanks Dan.
> 
> Chris, would you be so kind to review the original changes here:
> 
> sbp-target: Conversion to percpu_ida tag pre-allocation
> http://www.spinics.net/lists/target-devel/msg11778.html
> 
> sbp-target: Convert to TARGET_SCF_ACK_KREF I/O krefs
> http://www.spinics.net/lists/target-devel/msg11780.html
> 
> and verify on your local IEEE1394 target setup..?

Hi Nic, Dan,

I’m away this weekend so I can’t test these for a few days at least, unfortunately. I must admit I only vaguely follow the changes here as I haven’t been keeping up with the pace of change in target-devel lately, but it generally looks OK I think.

Are these in linux-next or another branch somewhere I can easily clone them from?

How soon do you need my ACK/NAK on these?

Cheers,
Chris

-- 
Chris Boot
bootc@...tc.net