diff options
| author | Jan Dumon <j.dumon@option.com> | 2010-01-05 07:52:42 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-07 11:43:46 +0300 |
| commit | 0e0367e980b55629917f3dd5f5f0ccbf3d0dab62 (patch) | |
| tree | fea3cbbca07b0179acbc923dfa9f36045267c6db /drivers/net/usb/hso.c | |
| parent | 68a351c501ad22077a969df157cd13367cb43a40 (diff) | |
| download | linux-0e0367e980b55629917f3dd5f5f0ccbf3d0dab62.tar.xz | |
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/usb/hso.c')
| -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); |