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Date:	Mon, 20 Oct 2014 02:19:27 +0000
From:	Hayes Wang <>
To:	Oliver Neukum <>
CC:	"" <>,
	nic_swsd <>,
	"" <>,
	"" <>
Subject: RE: [PATCH net] r8152: use cancel_delayed_work for runtime suspend

 Oliver Neukum [] 
> Sent: Sunday, October 19, 2014 3:48 AM
> The diagnosis is good, the fix is not good. It opens a race
> during which the queued work can touch a suspended device.

The delayed work would wake up the device by
calling usb_autopm_get_interface() before
accessing the device. Besides, there is a mutex
to avoid the race.
Best Regards,
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