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| author | Arnd Bergmann <arnd@arndb.de> | 2013-04-09 15:29:20 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2013-04-09 15:29:43 +0200 |
| commit | 44c0d2377539fafd1023ec7e16765b71c7f4fbce (patch) | |
| tree | 49065c2af83c723f150bf636939790ad3108a897 /drivers/usb/serial/ark3116.c | |
| parent | 8024206dbf4e0701f0cdf259a122ea23db3a7a16 (diff) | |
| parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) | |
| download | olio-linux-3.10-44c0d2377539fafd1023ec7e16765b71c7f4fbce.tar.xz olio-linux-3.10-44c0d2377539fafd1023ec7e16765b71c7f4fbce.zip | |
Merge tag 'v3.9-rc5' into next/cleanup
This is a dependency for the mxs/cleanup branch.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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 cbd904b8fba..4775f8209e5 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); } } |