linux-kernel - Re: [PATCH] Fix segfault when printing battery status

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Message-ID: <47416EFF.3070402@gmail.com>
Date:	Mon, 19 Nov 2007 14:09:51 +0300
From:	Alexey Starikovskiy <aystarik@...il.com>
To:	Rolf Eike Beer <eike-kernel@...tec.de>
CC:	lenb@...nel.org, linux-acpi@...r.kernel.org, astarikovskiy@...e.de,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Fix segfault when printing battery status

Rolf Eike Beer wrote:
> Alexey Starikovskiy wrote:
>   
>> Rolf Eike Beer wrote:
>>     
>>> cat
>>> /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:19/PNP0C0A:00/power_
>>> supply/BAT1/status
>>>
>>> This leads to a stacktrace as acpi_battery_get_property() returns 0 for a
>>> case where it does not set val->intval. These value is used as an array
>>> index in
>>> drivers/power/power_supply_sysfs.c::power_supply_show_property(). I had a
>>> situation where the value was 4096 which caused a problem as the array
>>> only has 5 entries.
>>>
>>> Signed-off-by: Rolf Eike Beer <eike-kernel@...tec.de>
>>>       
>> Rolf, thanks for remainding.
>>     
>
> Huh? This one is unrelated to the problem I reported two weeks ago...
>
> Eike
>   
You are second to send the same patch, first one I already acked.
But it seems that Len did not pick it up yet.
Look for "ACPI: Always return valid 'status' from 
acpi_battery_get_property()"
if interested...

Regards,
Alex.

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