linux-kernel - Re: [PATCH] HID: hid-input: fix double-free in cleanup

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Message-ID: <1439381729.357.0.camel@mattleach.net>
Date:	Wed, 12 Aug 2015 13:15:29 +0100
From:	Matthew Leach <matthew@...tleach.net>
To:	Jiri Kosina <jikos@...nel.org>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Sebastian Reichel <sre@...nel.org>, stable@...r.kernel.org
Subject: Re: [PATCH] HID: hid-input: fix double-free in cleanup_battery

On Wed, 2015-08-12 at 15:16 +0200, Jiri Kosina wrote:
> On Wed, 12 Aug 2015, Matthew Leach wrote:
> 
> > The power supply layer has taken control of the power supply 
> objects
> > from the drivers to core, see [1].  As such, calling
> > power_supply_unregister is enough to free the power_supply device.
> > 
> > Remove the extra kfree's as the power_supply core will handle 
> freeing
> > the power_supply object for us.
> 
> Please see commit 0621809e37 ("HID: hid-input: Fix accessing freed 
> memory 
> during device disconnect") in Linus' tree.

Ah.  I missed that.  Sorry for the noise.
-- 
Matt
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