linux-kernel - Re: [PATCH 04/12] hdaps: Correct readout and remove nonsensical attributes

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Date:	Tue, 8 Aug 2006 15:22:34 +0300
From:	Muli Ben-Yehuda <muli@...ibm.com>
To:	Björn Steinbrink <B.Steinbrink@....de>
Cc:	Shem Multinymous <multinymous@...il.com>,
	Pavel Machek <pavel@...e.cz>, Robert Love <rlove@...ve.org>,
	Jean Delvare <khali@...ux-fr.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org, hdaps-devel@...ts.sourceforge.net
Subject: Re: [PATCH 04/12] hdaps: Correct readout and remove nonsensical attributes

On Mon, Aug 07, 2006 at 08:20:47PM +0200, Björn Steinbrink wrote:
> On 2006.08.07 19:30:55 +0300, Shem Multinymous wrote:
> > Hi Pavel,
> > 
> > On 8/7/06, Pavel Machek <pavel@...e.cz> wrote:
> > >> +     int total, ret;
> > >> +     for (total=READ_TIMEOUT_MSECS; total>0; total-=RETRY_MSECS) {
> > >
> > >Could we go from 0 to timeout, not the other way around?
> > 
> > Sure.
> > (That's actually vanilla hdapsd code, moved around...)
> 
> Maybe you could convert that to sth. like this along the way?
> 
> int ret;
> unsigned long timeout = jiffies + msec_to_jiffies(READ_TIMEOUT_MSECS);
> for (;;) {
> 	ret = thinkpad_ec_lock();
> 	if (ret)
> 		return ret;

Just in case someone was going to cut and paste, this will return with
the ec_lock taken.

Cheers,
Muli
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