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Re: [PATCH 1/3] thermal: core: Fix a memory leak in 'thermal_zone_device_register()' error handling path

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  Re: [PATCH 1/3] thermal: core: Fix a memory leak in  'thermal_zone_device_register()' error handling path Zhang Rui <rui.zhang@intel.com> - 2017-08-08 10:40 +0200

#1706156 — Re: [PATCH 1/3] thermal: core: Fix a memory leak in 'thermal_zone_device_register()' error handling path

On Sun, 2017-07-16 at 08:59 +0200, Christophe JAILLET wrote:
> 'tz' is freed in some error handling paths but not in the main one.
> So free it also here to avoid a memory leak.
> 
After device registered, tz is freed in thermal_release().

thanks,
rui
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
>  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 5a51c740e372..9743f3e65eb0 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1296,6 +1296,7 @@ thermal_zone_device_register(const char *type,
> int trips, int mask,
>  unregister:
>  	ida_simple_remove(&thermal_tz_ida, tz->id);
>  	device_unregister(&tz->device);
> +	kfree(tz);
>  	return ERR_PTR(result);
>  }
>  EXPORT_SYMBOL_GPL(thermal_zone_device_register);

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