RE: [patch] tipc: remove an unnecessary NULL check

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> From: Dan Carpenter [mailto:dan.carpenter@xxxxxxxxxx]
> Sent: 2016年4月27日 16:05
> To: Jon Maloy
> Cc: Xue, Ying; David S. Miller; netdev@xxxxxxxxxxxxxxx; tipc-
> discussion@xxxxxxxxxxxxxxxxxxxxx; kernel-janitors@xxxxxxxxxxxxxxx
> Subject: [patch] tipc: remove an unnecessary NULL check
> 
> This is never called with a NULL "buf" and anyway, we dereference 's' on the
> lines before so it would Oops before we reach the check.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Acked-by: Ying Xue <ying.xue@xxxxxxxxxxxxx>

> 
> diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index 79de588..0dd0224
> 100644
> --- a/net/tipc/subscr.c
> +++ b/net/tipc/subscr.c
> @@ -326,8 +326,7 @@ static void tipc_subscrb_rcv_cb(struct net *net, int
> conid,
>  		return tipc_subscrp_cancel(s, subscriber);
>  	}
> 
> -	if (s)
> -		tipc_subscrp_subscribe(net, s, subscriber, swap);
> +	tipc_subscrp_subscribe(net, s, subscriber, swap);
>  }
> 
>  /* Handle one request to establish a new subscriber */
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