linux-kernel - Re: [PATCH 1/2] regulator: Put mutex lock down to mc13783_powermisc

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Message-ID: <20110503174710.GH1762@opensource.wolfsonmicro.com>
Date:	Tue, 3 May 2011 18:47:11 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel@...r.kernel.org, Yong Shen <yong.shen@...aro.org>,
	Liam Girdwood <lrg@...mlogic.co.uk>
Subject: Re: [PATCH 1/2] regulator: Put mutex lock down to
 mc13783_powermisc_rmw function

On Wed, May 04, 2011 at 12:40:30AM +0800, Axel Lin wrote:
> mc13783_powermisc_rmw function is doing read/modify/write bitmask operations,
> thus add the lock to protect it.
> Then we can remove the lock/unlock from the caller.

This should be squashed in with the MFD patch I think otherwise we'll
get bisection points with either no lock or double locking (which upsets
lockdep IIRC).  The change itself looks good, though, and similarly for
patch 2
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