RE: [PATCH 1/2] Thermal:Fix memory leak if occur goto unregister

[R, Durgadoss]

>-----Original Message-----
>From: linux-pm-owner@xxxxxxxxxxxxxxx [mailto:linux-pm-
>owner@xxxxxxxxxxxxxxx] On Behalf Of Eduardo Valentin
>Sent: Monday, October 20, 2014 6:04 PM
>To: Yao Dongdong
>Cc: Zhang, Rui; linux-pm@xxxxxxxxxxxxxxx; LKML
>Subject: Re: [PATCH 1/2] Thermal:Fix memory leak if occur goto unregister
>
>Hello,
>
>On Mon, Oct 20, 2014 at 04:27:36PM +0800, Yao Dongdong wrote:
>> Signed-off-by:yaodongdong@xxxxxxxxxx
>
>Acked-by: Eduardo Valentin <edubezval@xxxxxxxxx>
>
>Rui, would you take care of this?
>

If I remember it right, this 'tz' is freed in the thermal_release()
function, during device_unregister().

It is similar in all other functions in thermal_core.c

So, Yao, Did you really test this patch ?
And did not see any crashes ?

Thanks,
Durga

>>
>> ---
>>  drivers/thermal/thermal_core.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
>> index 71b0ec0..5b7d466 100644
>> --- a/drivers/thermal/thermal_core.c
>> +++ b/drivers/thermal/thermal_core.c
>> @@ -1574,6 +1574,7 @@ struct thermal_zone_device
>*thermal_zone_device_register(const char *type,
>>  unregister:
>>     release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
>>     device_unregister(&tz->device);
>> +   kfree(tz);
>>     return ERR_PTR(result);
>>  }
>>  EXPORT_SYMBOL_GPL(thermal_zone_device_register);
>> --
>> 1.8.0.1
>>
>>
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