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| author | Jiri Kosina <jkosina@suse.cz> | 2010-08-11 09:36:51 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-08-11 09:36:51 +0200 |
| commit | 6396fc3b3ff3f6b942992b653a62df11dcef9bea (patch) | |
| tree | db3c7cbe833b43c653adc99f70941431c5ff7c4e /drivers/usb/serial/generic.c | |
| parent | fix a typo on comments in mm/percpu.c (diff) | |
| parent | Merge branch 'for-linus' of git://neil.brown.name/md (diff) | |
| download | linux-6396fc3b3ff3f6b942992b653a62df11dcef9bea.tar.xz linux-6396fc3b3ff3f6b942992b653a62df11dcef9bea.zip | |
Merge branch 'master' into for-next
Conflicts:
fs/exofs/inode.c
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). */ |