linux-kernel - Re: [PATCH] fujitsu-laptop: remove superfluous NULL pointer checks

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Message-Id: <200907310357.n6V3vFSr005759@mercury.physics.adelaide.edu.au>
Date:	Fri, 31 Jul 2009 13:27:15 +0930 (CST)
From:	Jonathan Woithe <jwoithe@...sics.adelaide.edu.au>
To:	bzolnier@...il.com (Bartlomiej Zolnierkiewicz)
Cc:	jwoithe@...sics.adelaide.edu.au (Jonathan Woithe),
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	error27@...il.com (Dan Carpenter), corbet@....net,
	eteo@...hat.com, julia@...u.dk (Julia Lawall)
Subject: Re: [PATCH] fujitsu-laptop: remove superfluous NULL pointer checks

Hi

> > > From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> > > Subject: [PATCH] fujitsu-laptop: remove superfluous NULL pointer checks
> > > 
> > > This takes care of the following entries from Dan's list:
> > > 
> > > drivers/platform/x86/fujitsu-laptop.c +327 set_lcd_level(13) warning: variable derefenced before check 'fujitsu'
> > > drivers/platform/x86/fujitsu-laptop.c +358 set_lcd_level_alt(13) warning: variable derefenced before check 'fujitsu'
> > 
> > I'd rather keep the test for a non-null fujitsu in there, but obviously it's
> > kind of pointless doing it after the first dereference.  Since this fixup
> > overlaps with the one previously discussed with Julia I've taken the liberty
> 
> They are on top of Julia's patch (sorry I forgot to mention it)..

Ah, right.  I was trying to work out where it fitted (that was probably the
one preceeding patch I *didn't* end up trying).

Regards
  jonathan
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