From: John Ogness <john.ogness@xxxxxxxxxxxxx> The portdata spinlock can be taken in interrupt context (via sierra_outdat_callback()). Disable interrupts when taking the portdata spinlock. Cc: Johan Hovold <johan@xxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: John Ogness <john.ogness@xxxxxxxxxxxxx> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> --- drivers/usb/serial/sierra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index d189f953c891..55956a638f5b 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -770,9 +770,9 @@ static void sierra_close(struct usb_serial_port *port) kfree(urb->transfer_buffer); usb_free_urb(urb); usb_autopm_put_interface_async(serial->interface); - spin_lock(&portdata->lock); + spin_lock_irq(&portdata->lock); portdata->outstanding_urbs--; - spin_unlock(&portdata->lock); + spin_unlock_irq(&portdata->lock); } sierra_stop_rx_urbs(port); -- 2.18.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
