From: Joe Eykholt <jeykholt@cisco.com>
To: Robert Love <robert.w.love@intel.com>
Cc: Hillf Danton <dhillf@gmail.com>,
devel@open-fcoe.org, linux-scsi@vger.kernel.org
Subject: Re: [Open-FCoE] [PATCH 1/2] libfc: fix memory leakage in local port
Date: Thu, 28 Oct 2010 16:31:26 -0700 [thread overview]
Message-ID: <4CCA07CE.2060702@cisco.com> (raw)
In-Reply-To: <1288307525.1431.201.camel@fritz>
On 10/28/10 4:12 PM, Robert Love wrote:
> On Wed, 2010-10-27 at 20:40 +0800, Hillf Danton wrote:
>> There seems info should get freed when error encountered.
>>
>> Signed-off-by: Hillf Danton <dhillf@gmail.com>
>> ---
>>
>> --- a/drivers/scsi/libfc/fc_lport.c 2010-09-13 07:07:38.000000000 +0800
>> +++ b/drivers/scsi/libfc/fc_lport.c 2010-10-27 20:33:36.000000000 +0800
>> @@ -1766,8 +1766,10 @@ static int fc_lport_ct_request(struct fc
>> info->sg = job->reply_payload.sg_list;
>>
>> if (!lport->tt.exch_seq_send(lport, fp, fc_lport_bsg_resp,
>> - NULL, info, tov))
>> + NULL, info, tov)) {
>> + kfree(info);
>
> We cannot free the BSG info here. If you look at fc_exch_seq_send you
> can see that it's attached to the exchange and then when the response is
> received it is passed to the response handler, in the case
> fc_lport_bsg_resp, where it is free'd.
This is on failure of seq_send(). It's confusing because that returns the
sequence, which is NULL on error. So, I think the kfree() is correct.
>
>> return -ECOMM;
>> + }
>> return 0;
>> }
>> _______________________________________________
>> devel mailing list
>> devel@open-fcoe.org
>> http://www.open-fcoe.org/mailman/listinfo/devel
>
>
> _______________________________________________
> devel mailing list
> devel@open-fcoe.org
> http://www.open-fcoe.org/mailman/listinfo/devel
next prev parent reply other threads:[~2010-10-28 23:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-27 12:40 [PATCH 1/2] libfc: fix memory leakage in local port Hillf Danton
2010-10-27 12:43 ` [PATCH 2/2] " Hillf Danton
2010-10-28 23:13 ` [Open-FCoE] " Robert Love
2010-10-28 23:12 ` [Open-FCoE] [PATCH 1/2] " Robert Love
2010-10-28 23:31 ` Joe Eykholt [this message]
2010-10-28 23:35 ` Robert Love
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