linux-kernel - Re: [PATCH 6/8]i2c:i2c_core Fix warning: variable 'dummy' set but not used

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Message-ID: <20100615134343.6ae4a6e1@hyperion.delvare>
Date:	Tue, 15 Jun 2010 13:43:43 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	linux-kernel@...r.kernel.org, reiserfs-devel@...r.kernel.org,
	linux-bluetooth@...r.kernel.org, clemens@...isch.de,
	debora@...ux.vnet.ibm.com, dri-devel@...ts.freedesktop.org,
	linux-i2c@...r.kernel.org, linux1394-devel@...ts.sourceforge.net,
	linux-media@...r.kernel.org
Subject: Re: [PATCH 6/8]i2c:i2c_core Fix warning: variable 'dummy' set but 
 not used

Hi Justin,

On Mon, 14 Jun 2010 14:06:12 -0700, Justin P. Mattock wrote:
> On 06/14/2010 01:53 PM, Jean Delvare wrote:
> > Hi Justin,
> >
> > On Mon, 14 Jun 2010 13:26:46 -0700, Justin P. Mattock wrote:
> >> could be a right solution, could be wrong
> >> here is the warning:
> >>    CC      drivers/i2c/i2c-core.o
> >> drivers/i2c/i2c-core.c: In function 'i2c_register_adapter':
> >> drivers/i2c/i2c-core.c:757:15: warning: variable 'dummy' set but not used
> >>
> >>   Signed-off-by: Justin P. Mattock<justinmattock@...il.com>
> >>
> >> ---
> >>   drivers/i2c/i2c-core.c |    2 ++
> >>   1 files changed, 2 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
> >> index 1cca263..79c6c26 100644
> >> --- a/drivers/i2c/i2c-core.c
> >> +++ b/drivers/i2c/i2c-core.c
> >> @@ -794,6 +794,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
> >>   	mutex_lock(&core_lock);
> >>   	dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap,
> >>   				 __process_new_adapter);
> >> +	if(!dummy)
> >> +		dummy = 0;
> >
> > One word: scripts/checkpatch.pl
> 
> it was this, and/or just take the code out
> (since I'm a newbie)

I was not (yet) arguing on the code itself, but on its format. Any
patch you send should pass the formatting tests performed by
scripts/checkpatch.pl. Thanks.

-- 
Jean Delvare
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