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/ark3116.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/ark3116.c')
| -rw-r--r-- | drivers/usb/serial/ark3116.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index cbd904b8fba5..4775f8209e55 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -62,7 +62,6 @@ static int is_irda(struct usb_serial *serial) } struct ark3116_private { - wait_queue_head_t delta_msr_wait; struct async_icount icount; int irda; /* 1 for irda device */ @@ -146,7 +145,6 @@ static int ark3116_port_probe(struct usb_serial_port *port) if (!priv) return -ENOMEM; - init_waitqueue_head(&priv->delta_msr_wait); mutex_init(&priv->hw_lock); spin_lock_init(&priv->status_lock); @@ -456,10 +454,14 @@ static int ark3116_ioctl(struct tty_struct *tty, case TIOCMIWAIT: for (;;) { struct async_icount prev = priv->icount; - 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; + if ((prev.rng == priv->icount.rng) && (prev.dsr == priv->icount.dsr) && (prev.dcd == priv->icount.dcd) && @@ -580,7 +582,7 @@ static void ark3116_update_msr(struct usb_serial_port *port, __u8 msr) priv->icount.dcd++; if (msr & UART_MSR_TERI) priv->icount.rng++; - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); } } |