diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-04-04 00:18:36 +0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-04-04 00:18:36 +0400 |
| commit | 6a7b3e970426f4bc2a8d52f81a4fda6595a9f052 (patch) | |
| tree | 055765564c839e456fbe4c65c8cd2c4b00d731b7 /drivers/usb/serial/pl2303.c | |
| parent | 661462f4c6d3c9ae0bac193c65936ebfac4c95b4 (diff) | |
| parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) | |
| download | linux-6a7b3e970426f4bc2a8d52f81a4fda6595a9f052.tar.xz | |
Merge tag 'v3.9-rc5' into devel
Linux 3.9-rc5
Conflicts:
drivers/pinctrl/pinconf.c
Diffstat (limited to 'drivers/usb/serial/pl2303.c')
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 54adc9125e5c..3b10018d89a3 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -139,7 +139,6 @@ struct pl2303_serial_private { struct pl2303_private { spinlock_t lock; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -233,7 +232,6 @@ static int pl2303_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); @@ -607,11 +605,14 @@ 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); @@ -719,7 +720,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); if (priv->line_status & UART_BREAK_ERROR) usb_serial_handle_break(port); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); tty = tty_port_tty_get(&port->port); if (!tty) @@ -783,7 +784,7 @@ static void pl2303_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; |