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From: Joe Perches <joe@perches.com>
To: "Bjørn Mork" <bjorn@mork.no>
Cc: Dave Jones <davej@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Andy Whitcroft <apw@shadowen.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Jacob Pan <jacob.jun.pan@linux.intel.com>
Subject: Re: [PATCH] checkpatch: Warn on comparisons to true and false
Date: Thu, 11 Apr 2013 07:25:15 -0700
Message-ID: <1365690315.1929.8.camel@joe-AO722> (raw)
In-Reply-To: <878v4pwa9l.fsf@nemi.mork.no>

On Thu, 2013-04-11 at 13:56 +0200, Bjørn Mork wrote:
> I felt I had to share this little gem
> which showed up in drivers/gpu/drm/exynos/exynos_drm_vidi.c:
> 
> static int vidi_power_on(struct vidi_context *ctx, bool enable)
> {
>         struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
>         struct device *dev = subdrv->dev;
> 
>         DRM_DEBUG_KMS("%s\n", __FILE__);
> 
>         if (enable != false && enable != true)
>                 return -EINVAL;
> ..
> That's taking failsafe to the next step :)

Cute.  It's a relatively new driver too so I'd guess
the "int -> bool conversion leftover" defense isn't
too likely.


      reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-10  3:17 Joe Perches
2013-04-10  9:33 ` Andy Whitcroft
2013-04-10 11:27   ` Joe Perches
2013-04-10 12:41     ` Andy Whitcroft
2013-04-10 22:57 ` Andrew Morton
2013-04-11  1:07   ` Joe Perches
2013-04-11  2:14   ` Dave Jones
2013-04-11  3:47     ` Joe Perches
2013-04-11  8:19     ` Dan Carpenter
2013-04-11  8:29       ` Joe Perches
2013-04-11 11:56     ` Bjørn Mork
2013-04-11 14:25       ` Joe Perches [this message]

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