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| author | James Morris <jmorris@macbook.(none)> | 2009-12-03 07:33:40 +0100 |
|---|---|---|
| committer | James Morris <jmorris@macbook.(none)> | 2009-12-03 07:33:40 +0100 |
| commit | c84d6efd363a3948eb32ec40d46bab6338580454 (patch) | |
| tree | 3ba7ac46e6626fe8ac843834588609eb6ccee5c6 /drivers/usb/serial/opticon.c | |
| parent | TOMOYO: Add recursive directory matching operator support. (diff) | |
| parent | Linux 2.6.32 (diff) | |
| download | linux-c84d6efd363a3948eb32ec40d46bab6338580454.tar.xz linux-c84d6efd363a3948eb32ec40d46bab6338580454.zip | |
Merge branch 'master' into next
Diffstat (limited to 'drivers/usb/serial/opticon.c')
| -rw-r--r-- | drivers/usb/serial/opticon.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 1085a577c5c1..80f59b6350cb 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -314,21 +314,24 @@ static void opticon_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; struct opticon_private *priv = usb_get_serial_data(port->serial); unsigned long flags; - int result; + int result, was_throttled; dbg("%s - port %d", __func__, port->number); spin_lock_irqsave(&priv->lock, flags); priv->throttled = false; + was_throttled = priv->actually_throttled; priv->actually_throttled = false; spin_unlock_irqrestore(&priv->lock, flags); priv->bulk_read_urb->dev = port->serial->dev; - result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", + if (was_throttled) { + result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC); + if (result) + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", __func__, result); + } } static int opticon_tiocmget(struct tty_struct *tty, struct file *file) |