From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Mon, 24 Nov 2014 19:06:49 +0000
Subject: Re: [PATCH 1/1] s390/pci: Deletion of unnecessary checks before the function call "debug_unregister"
Message-Id: <alpine.LFD.2.11.1411242004590.1608@denkbrett>
List-Id: <kernel-janitors.vger.kernel.org>
References: <5307CAA2.8060406@users.sourceforge.net> <alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6> <530A086E.8010901@users.sourceforge.net> <alpine.DEB.2.02.1402231635510.1985@localhost6.localdomain6> <530A72AA.3000601@users.sourceforge.net>
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To: SF Markus Elfring <elfring@users.sourceforge.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>, Gerald Schaefer <gerald.schaefer@de.ibm.com>, Martin Schwidefsky <schwidefsky@de.ibm.com>, linux390@de.ibm.com, linux-s390@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org, Julia Lawall <julia.lawall@lip6.fr>

On Sat, 22 Nov 2014, SF Markus Elfring wrote:

> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 22 Nov 2014 15:00:55 +0100
> 
> The debug_unregister() function performs also input parameter validation.
> Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  arch/s390/pci/pci_debug.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/s390/pci/pci_debug.c b/arch/s390/pci/pci_debug.c
> index eec598c..18403a7 100644
> --- a/arch/s390/pci/pci_debug.c
> +++ b/arch/s390/pci/pci_debug.c
> @@ -158,10 +158,8 @@ int __init zpci_debug_init(void)
> 
>  void zpci_debug_exit(void)
>  {
> -	if (pci_debug_msg_id)
> -		debug_unregister(pci_debug_msg_id);
> -	if (pci_debug_err_id)
> -		debug_unregister(pci_debug_err_id);
> +	debug_unregister(pci_debug_msg_id);
> +	debug_unregister(pci_debug_err_id);
> 
>  	debugfs_remove(debugfs_root);
>  }

Applied.

Thanks,
Sebastian