linux-kernel - Re: [PATCH 1/1] [media] firewire: Deletion of an unnecessary check before the function call "dvb_unregister

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Message-ID: <20141120154148.724ab462@kant>
Date:	Thu, 20 Nov 2014 15:41:48 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	linux-media@...r.kernel.org, linux1394-devel@...ts.sourceforge.net,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH 1/1] [media] firewire: Deletion of an unnecessary check
 before the function call "dvb_unregister_device"

On Nov 20 SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Thu, 20 Nov 2014 10:49:07 +0100
> 
> The dvb_unregister_device() function tests whether its argument is NULL
> and then returns immediately. Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>

Reviewed-by: Stefan Richter <stefanr@...6.in-berlin.de>

> ---
>  drivers/media/firewire/firedtv-ci.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/media/firewire/firedtv-ci.c b/drivers/media/firewire/firedtv-ci.c
> index e5ebdbf..e63f582 100644
> --- a/drivers/media/firewire/firedtv-ci.c
> +++ b/drivers/media/firewire/firedtv-ci.c
> @@ -253,6 +253,5 @@ int fdtv_ca_register(struct firedtv *fdtv)
>  
>  void fdtv_ca_release(struct firedtv *fdtv)
>  {
> -	if (fdtv->cadev)
> -		dvb_unregister_device(fdtv->cadev);
> +	dvb_unregister_device(fdtv->cadev);
>  }



-- 
Stefan Richter
-=====-====- =-== =-=--
http://arcgraph.de/sr/
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