diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2014-02-19 10:29:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-06 21:30:10 -0800 |
| commit | 2efc229a0ec1b247e8c2ca5069d22252e792333a (patch) | |
| tree | 26a54af9ced0a7205a1b90df4465549d720c9117 /drivers/usb/serial/ftdi_sio_ids.h | |
| parent | 9021ee52db43b0966d04d75b28a8c9e07362df49 (diff) | |
usb: ehci: fix deadlock when threadirqs option is used
commit a1227f3c1030e96ebc51d677d2f636268845c5fb upstream.
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>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/ftdi_sio_ids.h')
0 files changed, 0 insertions, 0 deletions