linux-kernel - Re: [PATCH v2] locktorture: Fix NULL pointer when torture

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Date:	Tue, 8 Mar 2016 10:10:52 +0800
From:	Kefeng Wang <wangkefeng.wang@...wei.com>
To:	<paulmck@...ux.vnet.ibm.com>
CC:	Davidlohr Bueso <dave@...olabs.net>,
	<linux-kernel@...r.kernel.org>, <peterz@...radead.org>,
	<mingo@...hat.com>, Josh Triplett <josh@...htriplett.org>,
	"Guohanjun (Hanjun Guo)" <guohanjun@...wei.com>
Subject: Re: [PATCH v2] locktorture: Fix NULL pointer when torture_type is
 invalid



On 2016/3/7 21:37, Paul E. McKenney wrote:
> On Mon, Mar 07, 2016 at 03:02:05PM +0800, Kefeng Wang wrote:
>>
>>
>> On 2016/3/7 13:40, Davidlohr Bueso wrote:
>>> On Mon, 07 Mar 2016, Kefeng Wang wrote:
>>>> On 2016/3/3 16:36, Davidlohr Bueso wrote:
>>>
>>>>> +    /*
>>>>> +     * Indicates early cleanup, meaning that the test has not run,
>>>>> +     * such as when passing bogus args when loading the module. As
>>>>> +     * such, only perform the underlying torture-specific cleanups,
>>>>> +     * and avoid anything related to locktorture.
>>>>> +     */
>>>>> +    if (!cxt.lwsa)
>>>>> +        goto end;
>>>>
>>>> Sorry for the late response, the cxt.lrsa should be taken into account too.
>>>
>>> I am taking it into account, note that we kfree lwsa if lrsa fails memory
>>> allocation. Of course we should be defensive, so go ahead and explicitly set
>>> it to nil. v2 below, otherwise same patch.
>>
>> This one looks good, and tested on my board.
> 
> Very good!  May we add your Tested-by?

Sure, please.

> 
> 							Thanx, Paul