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Date: Mon, 20 Oct 2014 02:19:27 +0000 From: Hayes Wang <hayeswang@...ltek.com> To: Oliver Neukum <oliver@...kum.org> CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, nic_swsd <nic_swsd@...ltek.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org> Subject: RE: [PATCH net] r8152: use cancel_delayed_work for runtime suspend Oliver Neukum [mailto:oliver@...kum.org] > 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, Hayes -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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