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Commit 71c149b9 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: sierra: refactor delayed-urb submission 



Refactor and clean up delayed-urb submission at resume.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7d8825be

drivers/usb/serial/sierra.c

+43 −20
Original line number Original line Diff line number Diff line
@@ -981,43 +981,66 @@ static int sierra_suspend(struct usb_serial *serial, pm_message_t message) 
	return 0;

	return 0;

}

}





static int sierra_resume(struct usb_serial *serial)

/* Caller must hold susp_lock. */

static int sierra_submit_delayed_urbs(struct usb_serial_port *port)

{

{

	struct usb_serial_port *port;

	struct sierra_port_private *portdata = usb_get_serial_port_data(port);

	struct sierra_intf_private *intfdata = usb_get_serial_data(serial);

	struct sierra_intf_private *intfdata;

	struct sierra_port_private *portdata;

	struct urb *urb;

	struct urb *urb;

	int ec = 0;

	int ec = 0;

	int i, err;

	int err;





	spin_lock_irq(&intfdata->susp_lock);

	intfdata = usb_get_serial_data(port->serial);

	for (i = 0; i < serial->num_ports; i++) {

		port = serial->port[i];

		portdata = usb_get_serial_port_data(port);





		if (!portdata || !portdata->opened)

	for (;;) {

			continue;

		urb = usb_get_from_anchor(&portdata->delayed);

		if (!urb)

			break;





		while ((urb = usb_get_from_anchor(&portdata->delayed))) {

		usb_anchor_urb(urb, &portdata->active);

		usb_anchor_urb(urb, &portdata->active);

		intfdata->in_flight++;

		intfdata->in_flight++;

		err = usb_submit_urb(urb, GFP_ATOMIC);

		err = usb_submit_urb(urb, GFP_ATOMIC);

			if (err < 0) {

		if (err) {

				dev_err(&port->dev,

			dev_err(&port->dev, "%s - submit urb failed: %d",

					"%s - submit urb failed: %d",

					__func__, err);

					__func__, err);

			ec++;

			ec++;

			intfdata->in_flight--;

			intfdata->in_flight--;

			usb_unanchor_urb(urb);

			usb_unanchor_urb(urb);

			kfree(urb->transfer_buffer);

			kfree(urb->transfer_buffer);

			usb_free_urb(urb);

			usb_free_urb(urb);



			spin_lock(&portdata->lock);

			spin_lock(&portdata->lock);

			portdata->outstanding_urbs--;

			portdata->outstanding_urbs--;

			spin_unlock(&portdata->lock);

			spin_unlock(&portdata->lock);

				continue;

		}

		}

	}

	}





	if (ec)

		return -EIO;



	return 0;

}



static int sierra_resume(struct usb_serial *serial)

{

	struct usb_serial_port *port;

	struct sierra_intf_private *intfdata = usb_get_serial_data(serial);

	struct sierra_port_private *portdata;

	int ec = 0;

	int i, err;



	spin_lock_irq(&intfdata->susp_lock);

	for (i = 0; i < serial->num_ports; i++) {

		port = serial->port[i];

		portdata = usb_get_serial_port_data(port);



		if (!portdata || !portdata->opened)

			continue;



		err = sierra_submit_delayed_urbs(port);

		if (err)

			ec++;



		err = sierra_submit_rx_urbs(port, GFP_ATOMIC);

		err = sierra_submit_rx_urbs(port, GFP_ATOMIC);

		if (err)

		if (err)

			ec++;

			ec++;