Complete() will be run with interrupt enabled, so change to spin_lock_irqsave().
Cc: Johan Hovold <jhov...@gmail.com> Signed-off-by: Ming Lei <ming....@canonical.com> --- drivers/usb/serial/io_ti.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 9c18f59..a481414 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -1612,6 +1612,7 @@ static void edge_bulk_in_callback(struct urb *urb) int retval = 0; int port_number; int status = urb->status; + unsigned long flags; switch (status) { case 0: @@ -1660,13 +1661,13 @@ static void edge_bulk_in_callback(struct urb *urb) exit: /* continue read unless stopped */ - spin_lock(&edge_port->ep_lock); + spin_lock_irqsave(&edge_port->ep_lock, flags); if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) retval = usb_submit_urb(urb, GFP_ATOMIC); else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; - spin_unlock(&edge_port->ep_lock); + spin_unlock_irqrestore(&edge_port->ep_lock, flags); if (retval) dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html