[dpdk-dev] [PATCH v6] af_packet: Fix some klocwork errors
Pawel Wodkowski
pawelx.wodkowski at intel.com
Tue Mar 10 09:59:40 CET 2015
On 2015-03-10 09:49, Ouyang, Changchun wrote:
>
>
>> -----Original Message-----
>> From: Wodkowski, PawelX
>> Sent: Tuesday, March 10, 2015 4:37 PM
>> To: Ouyang, Changchun; dev at dpdk.org
>> Cc: linville at tuxdriver.com; nhorman at tuxdriver.com
>> Subject: Re: [PATCH v6] af_packet: Fix some klocwork errors
>>
>>> -
>>> - return 0;
>>> +exit:
>>> + if (kvlist != NULL)
>>
>> No need for if(). This part was fine previous patch.
>>
>
> If kvlist is NULL, no reason to call rte_kvargs_free to free it.
> So, adding this test is better.
For programmer convenience and reduce code bloat/obfuscation the same
test is in rte_kvargs_free() (and every other free-like function). If
there is no particular reason for that (ex performance which is not in
this path) checking pointer for NULL value should be avoided before
freeing it.
>
>>> + rte_kvargs_free(kvlist);
>>> + return ret;
>>> }
>>>
>>> static struct rte_driver pmd_af_packet_drv = {
>>>
>>
>>
>> --
>> Pawel
--
Pawel
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