linux-kernel - RE: [patch] rapidio: potential null deref on failure path

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Message-ID: <0CE8B6BE3C4AD74AB97D9D29BD24E55201A58AA6@CORPEXCH1.na.ads.idt.com>
Date:	Mon, 21 Mar 2011 11:34:44 -0700
From:	"Bounine, Alexandre" <Alexandre.Bounine@....com>
To:	"Dan Carpenter" <error27@...il.com>,
	"Matt Porter" <mporter@...nel.crashing.org>
Cc:	<linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: RE: [patch] rapidio: potential null deref on failure path

> From: Dan Carpenter [mailto:error27@...il.com]
> Sent: Saturday, March 19, 2011 12:41 AM
> To: Matt Porter
> Cc: Bounine, Alexandre; linux-kernel@...r.kernel.org; kernel-
> janitors@...r.kernel.org
> Subject: [patch] rapidio: potential null deref on failure path
> 
> If rio is not a switch then "rswitch" is null.
> 
> Signed-off-by: Dan Carpenter <error27@...il.com>
> 
> diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
> index a50391b..3a59d5f 100644
> --- a/drivers/rapidio/rio-scan.c
> +++ b/drivers/rapidio/rio-scan.c
> @@ -517,7 +517,7 @@ static struct rio_dev __devinit
> *rio_setup_device(struct rio_net *net,
>  	return rdev;
> 
>  cleanup:
> -	if (rswitch->route_table)
> +	if (rio_is_switch(rdev))
>  		kfree(rswitch->route_table);
> 
>  	kfree(rdev);

Acked-by: Alexandre Bounine <alexandre.bounine@....com>

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