diff options
| author | Alex Shi <alex.shi@linaro.org> | 2017-03-20 12:02:33 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2017-03-20 12:02:33 +0800 |
| commit | 156f7b56ee4b918b95991750e0f34da8ad416eae (patch) | |
| tree | fd47da260b3c78631721f36edf01b2878358283a /drivers/usb/serial/mos7840.c | |
| parent | 2e2fb031287a5946d97b85769f80ca60f0166e15 (diff) | |
| parent | d97f745e1d2fea4d2f308e5e06eee81a9a84f3f5 (diff) | |
Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-rtlsk-v4.1-17.06-rtlsk-v4.1-17.05-rtlsk-v4.1-17.03-rtlinux-linaro-lsk-v4.1-rt
Diffstat (limited to 'drivers/usb/serial/mos7840.c')
| -rw-r--r-- | drivers/usb/serial/mos7840.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index f5ab4cd9e7a1..d9f7b3bae09a 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2116,6 +2116,17 @@ static int mos7840_calc_num_ports(struct usb_serial *serial) return mos7840_num_ports; } +static int mos7840_attach(struct usb_serial *serial) +{ + if (serial->num_bulk_in < serial->num_ports || + serial->num_bulk_out < serial->num_ports) { + dev_err(&serial->interface->dev, "missing endpoints\n"); + return -ENODEV; + } + + return 0; +} + static int mos7840_port_probe(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; @@ -2394,6 +2405,7 @@ static struct usb_serial_driver moschip7840_4port_device = { .tiocmset = mos7840_tiocmset, .tiocmiwait = usb_serial_generic_tiocmiwait, .get_icount = usb_serial_generic_get_icount, + .attach = mos7840_attach, .port_probe = mos7840_port_probe, .port_remove = mos7840_port_remove, .read_bulk_callback = mos7840_bulk_in_callback, |