Re: [lm-sensors] [PATCH 3/3] hwmon: (jc42) do not allow writing tolocked registers

From: Guenter Roeck
Date: Wed Feb 16 2011 - 10:21:23 EST


On Wed, Feb 16, 2011 at 10:11:35AM -0500, Clemens Ladisch wrote:
> Guenter Roeck wrote:
> > On Wed, Feb 16, 2011 at 08:02:38AM -0500, Clemens Ladisch wrote:
> > > + readonly = config & JC42_CFG_TCRIT_LOCK;
> >
> > You are assigning a non-bool to a bool. I can see that recent C compilers
> > do the right thing, but I am not sure if that is always the case.
> > So I would prefer
> > readonly = !!(config & JC42_CFG_TCRIT_LOCK);
> >
> > Same for the assignments below. I can make that change if you are ok with it.
>
> I cannot imagine how a compiler could get this wrong even if it tried
> to, but if you think so, go ahead. :)
>
I don't know. Maybe I am just paranoid. Using !! is how I usually see it done.
Is it really needed ? No idea. Better safe than sorry...

Applied with above changes.

Thanks,
Guenter

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