Return-path: Received: from mail-pa0-f48.google.com ([209.85.220.48]:42188 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932259Ab3GKJJJ (ORCPT ); Thu, 11 Jul 2013 05:09:09 -0400 From: Ming Lei To: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, Oliver Neukum , Alan Stern , linux-input@vger.kernel.org, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-media@vger.kernel.org, alsa-devel@alsa-project.org, Ming Lei , Johan Hovold Subject: [PATCH 19/50] USB: serial: ti_usb_3410_5052: spin_lock in complete() cleanup Date: Thu, 11 Jul 2013 17:05:42 +0800 Message-Id: <1373533573-12272-20-git-send-email-ming.lei@canonical.com> (sfid-20130711_110924_553612_4FB42CF4) In-Reply-To: <1373533573-12272-1-git-send-email-ming.lei@canonical.com> References: <1373533573-12272-1-git-send-email-ming.lei@canonical.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Johan Hovold Signed-off-by: Ming Lei --- drivers/usb/serial/ti_usb_3410_5052.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 7182bb7..4b984e9 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1081,6 +1081,7 @@ static void ti_bulk_in_callback(struct urb *urb) struct device *dev = &urb->dev->dev; int status = urb->status; int retval = 0; + unsigned long flags; switch (status) { case 0: @@ -1116,20 +1117,20 @@ static void ti_bulk_in_callback(struct urb *urb) __func__); else ti_recv(port, urb->transfer_buffer, urb->actual_length); - spin_lock(&tport->tp_lock); + spin_lock_irqsave(&tport->tp_lock, flags); port->icount.rx += urb->actual_length; - spin_unlock(&tport->tp_lock); + spin_unlock_irqrestore(&tport->tp_lock, flags); } exit: /* continue to read unless stopping */ - spin_lock(&tport->tp_lock); + spin_lock_irqsave(&tport->tp_lock, flags); if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) retval = usb_submit_urb(urb, GFP_ATOMIC); else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) tport->tp_read_urb_state = TI_READ_URB_STOPPED; - spin_unlock(&tport->tp_lock); + spin_unlock_irqrestore(&tport->tp_lock, flags); if (retval) dev_err(dev, "%s - resubmit read urb failed, %d\n", __func__, retval); -- 1.7.9.5