linux-kernel - Re: [PATCH 6/9] ser_gigaset: checkpatch cleanup

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Date:	Sun, 25 Oct 2009 17:54:46 -0700
From:	Joe Perches <joe@...ches.com>
To:	Tilman Schmidt <tilman@...p.cc>
Cc:	David Miller <davem@...emloft.net>,
	Karsten Keil <isdn@...ux-pingi.de>,
	Hansjoerg Lipp <hjlipp@....de>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, isdn4linux@...tserv.isdn4linux.de,
	i4ldeveloper@...tserv.isdn4linux.de
Subject: Re: [PATCH 6/9] ser_gigaset: checkpatch cleanup

On Sun, 2009-10-25 at 20:30 +0100, Tilman Schmidt wrote:
> Duly uglified as demanded by checkpatch.pl.
> diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
> index 3071a52..ac3409e 100644
> --- a/drivers/isdn/gigaset/ser-gigaset.c
> +++ b/drivers/isdn/gigaset/ser-gigaset.c
> @@ -164,9 +164,15 @@ static void gigaset_modem_fill(unsigned long data)
>  {
>  	struct cardstate *cs = (struct cardstate *) data;
>  	struct bc_state *bcs;
> +	struct sk_buff *nextskb;
>  	int sent = 0;
>  
> -	if (!cs || !(bcs = cs->bcs)) {
> +	if (!cs) {
> +		gig_dbg(DEBUG_OUTPUT, "%s: no cardstate", __func__);
> +		return;
> +	}
> +	bcs = cs->bcs;
> +	if (!bcs) {
>  		gig_dbg(DEBUG_OUTPUT, "%s: no cardstate", __func__);
>  		return;
>	}

perhaps:
	if (!cs || !cs->bcs) {
		gig_dbg(DEBUG_OUTPUT, "%s: no cardstate", __func__);
		return;
	}
	bcs = cs->bcs;

[]

> @@ -404,16 +412,20 @@ static void gigaset_device_release(struct device *dev)
>  static int gigaset_initcshw(struct cardstate *cs)
>  {
>  	int rc;
> +	struct ser_cardstate *scs;
>  
> -	if (!(cs->hw.ser = kzalloc(sizeof(struct ser_cardstate), GFP_KERNEL))) {
> +	scs = kzalloc(sizeof(struct ser_cardstate), GFP_KERNEL);
> +	if (!scs) {
>  		pr_err("out of memory\n");
>  		return 0;
>  	}
> +	cs->hw.ser = scs;

Why not no temporary and just:

	cs->hw.ser = kzalloc...
	if (!cs->hw.ser)


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