| commit | a1227f3c1030e96ebc51d677d2f636268845c5fb | [log] [tgz] |
|---|---|---|
| author | Stanislaw Gruszka <sgruszka@redhat.com> | Wed Feb 19 10:29:01 2014 +0100 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Wed Feb 26 15:46:42 2014 -0800 |
| tree | a886ebd7fb7102a20de3a9fca88bee7efc3f8794 | |
| parent | 6dbd46c849e071e6afc1e0cad489b0175bca9318 [diff] |
usb: ehci: fix deadlock when threadirqs option is used ehci_irq() and ehci_hrtimer_func() can deadlock on ehci->lock when threadirqs option is used. To prevent the deadlock use spin_lock_irqsave() in ehci_irq(). This change can be reverted when hrtimer callbacks become threaded. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Cc: stable <stable@vger.kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>