linux-kernel - Re: [PATCH AUTOSEL 4.14 06/16] power: supply: cpcap-battery: Fix division by zero

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Date:   Sun, 19 May 2019 23:31:24 +0200
From:   Pavel Machek <pavel@....cz>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Tony Lindgren <tony@...mide.com>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 4.14 06/16] power: supply: cpcap-battery: Fix
 division by zero

On Thu 2019-05-16 07:40:57, Sasha Levin wrote:
> From: Tony Lindgren <tony@...mide.com>
> 
> [ Upstream commit dbe7208c6c4aec083571f2ec742870a0d0edbea3 ]
> 
> If called fast enough so samples do not increment, we can get
> division by zero in kernel:
> 
> __div0
> cpcap_battery_cc_raw_div
> cpcap_battery_get_property
> power_supply_get_property.part.1
> power_supply_get_property
> power_supply_show_property
> power_supply_uevent
> 
> Fixes: 874b2adbed12 ("power: supply: cpcap-battery: Add a battery driver")
> Signed-off-by: Tony Lindgren <tony@...mide.com>
> Acked-by: Pavel Machek <pavel@....cz>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
> Signed-off-by: Sasha Levin <sashal@...nel.org>

Yup, this one makes sense for stable

 Acked-for-stable-by: Pavel Machek <pavel@....cz>

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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