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Date:	Thu, 22 Mar 2012 07:36:07 -0700
From:	Greg Kroah-Hartman <>
To:	Ming Lei <>
Cc:	"David S. Miller" <>,,,,
	Alan Stern <>,
	Oliver Neukum <>
Subject: Re: [PATCH 2/2] usbnet: don't clear urb->dev in tx_complete

On Thu, Mar 22, 2012 at 09:22:38PM +0800, Ming Lei wrote:
> URB unlinking is always racing with its completion and tx_complete
> may be called before or during running usb_unlink_urb, so tx_complete
> must not clear urb->dev since it will be used in unlink path,
> otherwise invalid memory accesses or usb device leak may be caused
> inside usb_unlink_urb.
> Cc:
> Cc: Alan Stern <>
> Cc: Oliver Neukum <>
> Signed-off-by: Ming Lei <>

Acked-by: Greg Kroah-Hartman <>
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