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From: Dan Carpenter <dan.carpenter@oracle.com>
To: walter harms <wharms@bfs.de>
Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>,
	Andy Grover <agrover@redhat.com>, Jesper Juhl <jj@chaosbits.net>,
	Joern Engel <joern@logfs.org>, Roland Dreier <roland@kernel.org>,
	linux-scsi@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [patch] iscsi-target: remove some dead code
Date: Thu, 17 May 2012 13:26:23 +0300	[thread overview]
Message-ID: <20120517102622.GM16984@mwanda> (raw)
In-Reply-To: <4FB4CBD0.8000503@bfs.de>

On Thu, May 17, 2012 at 11:58:40AM +0200, walter harms wrote:
> 
> 
> Am 17.05.2012 09:08, schrieb Dan Carpenter:
> > Neither "acceptor_values" nor "proposer_values" can be NULL here.
> > Smatch complains because we are not allowed to pass NULL pointers to
> > strchr().
> > 
> > Also I removed a second later check for "!acceptor_values" because it
> > gets checked on the next line in the do while condition.
> > 
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > ---
> > Compile tested only.  Please review carefully.
> > 
> > diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
> > index ad3b3c1..ed5241e 100644
> > --- a/drivers/target/iscsi/iscsi_target_parameters.c
> > +++ b/drivers/target/iscsi/iscsi_target_parameters.c
> > @@ -1037,13 +1037,6 @@ static char *iscsi_check_valuelist_for_support(
> >  			tmp2 = strchr(acceptor_values, ',');
> >  			if (tmp2)
> >  				*tmp2 = '\0';
> this looks like strchrnul(). I realy do not know is this supported inside the kernel ?
> 

It can't be NULL here.  Adding bogus checks is the wrong idea and
static checkers are right to ask about needless checks.

regards,
dan carpenter


  reply	other threads:[~2012-05-17 10:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-17  7:08 [patch] iscsi-target: remove some dead code Dan Carpenter
2012-05-17  7:39 ` Nicholas A. Bellinger
2012-05-17  9:58 ` walter harms
2012-05-17 10:26   ` Dan Carpenter [this message]
2012-05-17 15:15   ` Jörn Engel

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