diff options
| author | Jan Dumon | 2010-01-05 05:52:42 +0100 |
|---|---|---|
| committer | David S. Miller | 2010-01-07 09:43:46 +0100 |
| commit | 0e0367e980b55629917f3dd5f5f0ccbf3d0dab62 (patch) | |
| tree | fea3cbbca07b0179acbc923dfa9f36045267c6db /drivers/net | |
| parent | hso: Attempt to recover from usb bus errors (diff) | |
| download | kernel-qcow2-linux-0e0367e980b55629917f3dd5f5f0ccbf3d0dab62.tar.gz kernel-qcow2-linux-0e0367e980b55629917f3dd5f5f0ccbf3d0dab62.tar.xz kernel-qcow2-linux-0e0367e980b55629917f3dd5f5f0ccbf3d0dab62.zip | |
hso: Fix for 5 sec timeouts with v2.x firmware
Don't send flow control settings to any port other than the modem port.
Older firmware ignored this request but did sent a reply. Newer firmware just
ignores it without reply and causes a 5 second timeout every time a port
(except for the modem port) is opened or if tiocm settings are changed.
Signed-off-by: Jan Dumon <j.dumon@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/usb/hso.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 7482d0d5e278..67eb8390cf07 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -1723,6 +1723,10 @@ static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file, D1("no tty structures"); return -EINVAL; } + + if ((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM) + return -EINVAL; + if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber; spin_lock_irqsave(&serial->serial_lock, flags); |