linux-kernel - Re: [PATCH] watchdog: fix GETTIMEOUT ioctl in booke

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Date:	Fri, 27 Jan 2012 15:22:56 -0600
From:	Timur Tabi <timur@...escale.com>
To:	Dmitry Artamonow <mad_soft@...ox.ru>
CC:	<linux-watchdog@...r.kernel.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Wim Van Sebroeck <wim@...ana.be>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] watchdog: fix GETTIMEOUT ioctl in booke_wdt

Timur Tabi wrote:
> Dmitry Artamonow wrote:
>> +#ifdef	CONFIG_FSL_BOOKE
>> +		return put_user(period_to_sec(booke_wdt_period), p);
>> +#else
> 
> period_to_sec() returns an unsigned long long, which means that the driver
> will write 8 bytes instead of 4 to user space. 

Ok, I take that back.  put_user() uses the size of the pointer, which
makes more sense anyway.


-- 
Timur Tabi
Linux kernel developer at Freescale

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