diff options
| author | Michal Marek <mmarek@suse.cz> | 2010-08-20 13:53:08 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-08-20 13:53:08 +0200 |
| commit | e981b060767b3c4ac9393ad8d2558d648e35dfcb (patch) | |
| tree | 9c05eaec3072be3645dda61d35085d152b9d5954 /drivers/usb/serial/generic.c | |
| parent | 3c955b407a084810f57260d61548cc92c14bc627 (diff) | |
| parent | da5cabf80e2433131bf0ed8993abc0f7ea618c73 (diff) | |
Merge commit 'v2.6.36-rc1' into kbuild/rc-fixes
Diffstat (limited to 'drivers/usb/serial/generic.c')
| -rw-r--r-- | drivers/usb/serial/generic.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index a817ced82835..ca92f67747cc 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -208,18 +208,23 @@ retry: urb->transfer_buffer_length = count; usb_serial_debug_data(debug, &port->dev, __func__, count, urb->transfer_buffer); + spin_lock_irqsave(&port->lock, flags); + port->tx_bytes += count; + spin_unlock_irqrestore(&port->lock, flags); + + clear_bit(i, &port->write_urbs_free); result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { dev_err(&port->dev, "%s - error submitting urb: %d\n", __func__, result); + set_bit(i, &port->write_urbs_free); + spin_lock_irqsave(&port->lock, flags); + port->tx_bytes -= count; + spin_unlock_irqrestore(&port->lock, flags); + clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags); return result; } - clear_bit(i, &port->write_urbs_free); - - spin_lock_irqsave(&port->lock, flags); - port->tx_bytes += count; - spin_unlock_irqrestore(&port->lock, flags); /* Try sending off another urb, unless in irq context (in which case * there will be no free urb). */ |