Merge branch 'for_next' into for_linus

[firefly-linux-kernel-4.4.55.git] / drivers / usb / serial / oti6858.c

diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index a958fd41b5b312a699b5d963d8db1a49ea56810b..87c71ccfee87bfd06d41034a52a6e5dc27a21c7f 100644 (file)
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -188,7 +188,6 @@ struct oti6858_private {
        u8 setup_done;
        struct delayed_work delayed_setup_work;
 
-       wait_queue_head_t intr_wait;
        struct usb_serial_port *port;   /* USB port with which associated */
 };
 
@@ -339,7 +338,6 @@ static int oti6858_port_probe(struct usb_serial_port *port)
                return -ENOMEM;
 
        spin_lock_init(&priv->lock);
-       init_waitqueue_head(&priv->intr_wait);
        priv->port = port;
        INIT_DELAYED_WORK(&priv->delayed_setup_work, setup_line);
        INIT_DELAYED_WORK(&priv->delayed_write_work, send_data);
@@ -664,11 +662,15 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
        spin_unlock_irqrestore(&priv->lock, flags);
 
        while (1) {
-               wait_event_interruptible(priv->intr_wait,
+               wait_event_interruptible(port->delta_msr_wait,
+                                       port->serial->disconnected ||
                                        priv->status.pin_state != prev);
                if (signal_pending(current))
                        return -ERESTARTSYS;
 
+               if (port->serial->disconnected)
+                       return -EIO;
+
                spin_lock_irqsave(&priv->lock, flags);
                status = priv->status.pin_state & PIN_MASK;
                spin_unlock_irqrestore(&priv->lock, flags);
@@ -763,7 +765,7 @@ static void oti6858_read_int_callback(struct urb *urb)
 
                if (!priv->transient) {
                        if (xs->pin_state != priv->status.pin_state)
-                               wake_up_interruptible(&priv->intr_wait);
+                               wake_up_interruptible(&port->delta_msr_wait);
                        memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE);
                }