staging: comedi: rtd520: rename CamelCase rtdBoard

[karo-tx-linux.git] / drivers / usb / serial / ti_usb_3410_5052.c

diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 39cb9b807c3cf998842c39267e9d217b82460e59..73deb029fc05d3d9c9b728f1fae1616a8efee6e4 100644 (file)
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -74,7 +74,6 @@ struct ti_port {
        int                     tp_flags;
        int                     tp_closing_wait;/* in .01 secs */
        struct async_icount     tp_icount;
-       wait_queue_head_t       tp_msr_wait;    /* wait for msr change */
        wait_queue_head_t       tp_write_wait;
        struct ti_device        *tp_tdev;
        struct usb_serial_port  *tp_port;
@@ -432,7 +431,6 @@ static int ti_port_probe(struct usb_serial_port *port)
        else
                tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
        tport->tp_closing_wait = closing_wait;
-       init_waitqueue_head(&tport->tp_msr_wait);
        init_waitqueue_head(&tport->tp_write_wait);
        if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, GFP_KERNEL)) {
                kfree(tport);
@@ -784,9 +782,13 @@ static int ti_ioctl(struct tty_struct *tty,
                dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
                cprev = tport->tp_icount;
                while (1) {
-                       interruptible_sleep_on(&tport->tp_msr_wait);
+                       interruptible_sleep_on(&port->delta_msr_wait);
                        if (signal_pending(current))
                                return -ERESTARTSYS;
+
+                       if (port->serial->disconnected)
+                               return -EIO;
+
                        cnow = tport->tp_icount;
                        if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
                            cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
@@ -1392,7 +1394,7 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr)
                        icount->dcd++;
                if (msr & TI_MSR_DELTA_RI)
                        icount->rng++;
-               wake_up_interruptible(&tport->tp_msr_wait);
+               wake_up_interruptible(&tport->tp_port->delta_msr_wait);
                spin_unlock_irqrestore(&tport->tp_lock, flags);
        }