linux-kernel - Re: [-mm Patch] INFINIBAND: check the return value of kmalloc

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Date:	Thu, 5 Jul 2007 02:00:07 +0200
From:	"Jesper Juhl" <jesper.juhl@...il.com>
To:	"WANG Cong" <xiyou.wangcong@...il.com>
Cc:	rolandd@...co.com, mshefty@...ips.intel.com, halr@...taire.com,
	"Andrew Morton" <akpm@...l.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [-mm Patch] INFINIBAND: check the return value of kmalloc

On 04/07/07, WANG Cong <xiyou.wangcong@...il.com> wrote:
>
> Don't forget to check the return value of kmalloc().
>
> Signed-off-by: WANG Cong <xiyou.wangcong@...il.com>
>
> ---
>
> Index: linux-2.6.22-rc6-mm1/drivers/infiniband/hw/cxgb3/iwch_provider.c
> ===================================================================
> --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c       2007-06-29 13:18:20.000000000 +0800
> +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c       2007-07-04 23:17:02.000000000 +0800
> @@ -1166,6 +1166,10 @@
>         dev->ibdev.iwcm =
>             (struct iw_cm_verbs *) kmalloc(sizeof(struct iw_cm_verbs),

While you are here anyway, why not get rid of that pointless kmalloc()
return value cast at the same time?

>                                            GFP_KERNEL);
> +       if (!dev->ibdev.iwcm) {
> +               ret = -1;
> +               goto bail1;
> +       }
>         dev->ibdev.iwcm->connect = iwch_connect;
>         dev->ibdev.iwcm->accept = iwch_accept_cr;
>         dev->ibdev.iwcm->reject = iwch_reject_cr;


-- 
Jesper Juhl <jesper.juhl@...il.com>
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