linux-kernel - Re: [PATCH driver-core-linus] sysfs: make sure read buffer is zeroed

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Message-ID: <20140520004955.GA30633@mtj.dyndns.org>
Date:	Mon, 19 May 2014 20:49:55 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Joe Perches <joe@...ches.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, Kay Sievers <kay@...y.org>,
	Ron <ron@...ian.org>, Ben Hutchings <ben@...adent.org.uk>
Subject: Re: [PATCH driver-core-linus] sysfs: make sure read buffer is zeroed

On Mon, May 19, 2014 at 03:32:22PM -0700, Joe Perches wrote:
> > > +	memset(buf, 0, PAGE_SIZE);
> 
> 	memset(buf, 0, count)?

It's always PAGE_SIZE.  Outputs longer than that are truncated.

Thanks.

-- 
tejun
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