[dpdk-dev] [PATCH] member: fix memory leak on error

Wang, Yipeng1 yipeng1.wang at intel.com
Tue Dec 26 18:23:40 CET 2017


Sure. Thanks Anatoly,

Please go ahead and submit V2. 

Thanks
Yipeng

>-----Original Message-----
>From: Burakov, Anatoly
>Sent: Saturday, December 23, 2017 3:55 AM
>To: Wang, Yipeng1 <yipeng1.wang at intel.com>; dev at dpdk.org
>Cc: Gobriel, Sameh <sameh.gobriel at intel.com>
>Subject: Re: [PATCH] member: fix memory leak on error
>
>On 22-Dec-17 6:33 PM, Wang, Yipeng1 wrote:
>>> -----Original Message-----
>>> From: Burakov, Anatoly
>>> Yep, i can see that now. Didn't think to look inside rte_member_free()
>>> :/ However, you're creating a race condition there - you're unlocking a
>>> tailq, and then locking (and unlocking) it again inside
>>> rte_member_free() - it probably needs _thread_unsafe() functions that
>>> you can call from behind the lock.
>>>
>>> --
>>
>> Thank you Anatoly,
>>
>> I realize that rte_member_free does not do anything good here. As a fix, I
>think the following should work. Is there any other concern?
>>
>
>Yes, that should work. Table creation is the last step that can cause an
>error, so if we're there, we already know that we couldn't have
>allocated it, so there's no need to deallocate those, and simple
>rte_free(setsum) should do. I'll submit a v2?
>
>--
>Thanks,
>Anatoly


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