Subject: Re: [PATCH] netlink: simplify nfnetlink_bind

From: Pablo Neira Ayuso <[email-masked]>
Date: Mon, 24 Mar 2014 12:10:44 +0100

On Fri, Mar 21, 2014 at 12:44:09PM -0400, Richard Guy Briggs wrote:
> Remove duplicity and simplify code flow by moving the rcu_read_unlock() above
> the condition and let the flow control exit naturally at the end of the
> function.
> 
> Signed-off-by: Richard Guy Briggs <[email-masked]>
> ---
>  net/netfilter/nfnetlink.c |    4 +---
>  1 files changed, 1 insertions(+), 3 deletions(-)
> 
> diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
> index 046aa13..75619f9 100644
> --- a/net/netfilter/nfnetlink.c
> +++ b/net/netfilter/nfnetlink.c
> @@ -399,12 +399,10 @@ static void nfnetlink_bind(int group)
>  
>  	rcu_read_lock();
>  	ss = nfnetlink_get_subsys(type);
> +	rcu_read_unlock();
>  	if (!ss) {
> -		rcu_read_unlock();
>  		request_module("nfnetlink-subsys-%d", type);
> -		return;
>  	}
> -	rcu_read_unlock();

Applied with minor glitch. Removed the brackets in that if branch.
Thanks