linux-kernel - Re: [PATCH] NFC: only put local on destruction if it was created before

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Message-ID: <20120625171738.GC16275@sortiz-mobl>
Date:	Mon, 25 Jun 2012 19:17:38 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Sasha Levin <levinsasha928@...il.com>
Cc:	lauro.venancio@...nbossa.org, aloisio.almeida@...nbossa.org,
	linville@...driver.com, davej@...hat.com,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] NFC: only put local on destruction if it was created
 before

Hi Sasha,

On Tue, Jun 12, 2012 at 10:08:19PM +0200, Sasha Levin wrote:
> Not having 'local' is a valid case when a socket was created but never
> bound or connected to anything, so avoid putting 'local' if it was
> never created.
> 
> Signed-off-by: Sasha Levin <levinsasha928@...il.com>
> ---
>  net/nfc/llcp/sock.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
> index 2c0b317..54daa10 100644
> --- a/net/nfc/llcp/sock.c
> +++ b/net/nfc/llcp/sock.c
> @@ -710,7 +710,8 @@ void nfc_llcp_sock_free(struct nfc_llcp_sock *sock)
>  
>  	sock->parent = NULL;
>  
> -	nfc_llcp_local_put(sock->local);
> +	if (sock->local)
> +		nfc_llcp_local_put(sock->local);
nfc_llcp_local_put() already checks for its argument being NULL or not.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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