linux-kernel - Re: [PATCH]: Add check return result while call create

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Date:	Thu, 27 Jul 2006 09:58:02 -0700 (PDT)
From:	"Randy.Dunlap" <rdunlap@...otime.net>
To:	Joe Jin <lkmaillist@...il.com>
cc:	Linus Torvalds <torvalds@...l.org>, Andrew Morton <akpm@...l.org>,
	ipw2100-admin@...ux.intel.com, linux-kernel@...r.kernel.org,
	Randy Dunlap <randy.dunlap@...cle.com>,
	wim.coekaerts@...cle.com, wangwengang1976@...il.com
Subject: Re: [PATCH]: Add check return result while call create_workqueue()
 for ipw2200

On Thu, 27 Jul 2006, Joe Jin wrote:

> Add check return result on call create_workqueue().
>
> Signed-off-by: Joe Jin <lkmaillist@...il.com>
> ---
>
> --- linux-2.6.17.7/drivers/net/wireless/ipw2200.c       2006-07-27
> 20:27:01.000000000 +0800
> +++ linux.new/drivers/net/wireless/ipw2200.c    2006-07-27
> 20:28:22.000000000 +0800
> @@ -10139,6 +10139,9 @@
>         int ret = 0;
>
>         priv->workqueue = create_workqueue(DRV_NAME);
> +       if(NULL == priv->workqueue){
> +               return -ENOMEM;
> +       }

Makes sense, but style needs some changes:

a.  space after "if"
b.  put NULL on righth side of ==, or use !priv->workqueue
c.  no {} braces for one-line "blocks"
d.  if braces were being used, put a space between ) and {

And <ret> is useless (not needed) in that function unless the code
is changed to have a single exit point.

>         init_waitqueue_head(&priv->wait_command_queue);
>         init_waitqueue_head(&priv->wait_state);
>

-- 
~Randy
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