Merge branch 'for_next' into for_linus

[firefly-linux-kernel-4.4.55.git] / drivers / usb / serial / f81232.c

diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index b1b2dc64b50be013eab09a2dd5ce535875aeeb5a..a172ad5c5ce80c1c00983960a04339ac3c13fb24 100644 (file)
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -47,7 +47,6 @@ MODULE_DEVICE_TABLE(usb, id_table);
 
 struct f81232_private {
        spinlock_t lock;
-       wait_queue_head_t delta_msr_wait;
        u8 line_control;
        u8 line_status;
 };
@@ -111,7 +110,7 @@ static void f81232_process_read_urb(struct urb *urb)
        line_status = priv->line_status;
        priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
        spin_unlock_irqrestore(&priv->lock, flags);
-       wake_up_interruptible(&priv->delta_msr_wait);
+       wake_up_interruptible(&port->delta_msr_wait);
 
        if (!urb->actual_length)
                return;
@@ -256,11 +255,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
        spin_unlock_irqrestore(&priv->lock, flags);
 
        while (1) {
-               interruptible_sleep_on(&priv->delta_msr_wait);
+               interruptible_sleep_on(&port->delta_msr_wait);
                /* see if a signal did it */
                if (signal_pending(current))
                        return -ERESTARTSYS;
 
+               if (port->serial->disconnected)
+                       return -EIO;
+
                spin_lock_irqsave(&priv->lock, flags);
                status = priv->line_status;
                spin_unlock_irqrestore(&priv->lock, flags);
@@ -322,7 +324,6 @@ static int f81232_port_probe(struct usb_serial_port *port)
                return -ENOMEM;
 
        spin_lock_init(&priv->lock);
-       init_waitqueue_head(&priv->delta_msr_wait);
 
        usb_set_serial_port_data(port, priv);