[PATCH 3.13 124/172] usb: ehci: fix deadlock when threadirqs option is used

3.13-stable review patch. If anyone has any objections, please let me know. -- From: Stanislaw Gruszka commit a1227f3c1030e96ebc51d677d2f636268845c5fb upstream. ehci_irq() and ehci_hrtimer_func() can deadlock on ehci->lock when threadirqs option is used. To prevent the

[PATCH 3.13 124/172] usb: ehci: fix deadlock when threadirqs option is used

3.13-stable review patch. If anyone has any objections, please let me know. -- From: Stanislaw Gruszka sgrus...@redhat.com commit a1227f3c1030e96ebc51d677d2f636268845c5fb upstream. ehci_irq() and ehci_hrtimer_func() can deadlock on ehci-lock when threadirqs option is used. To