diff options
author | Alex Shi <alex.shi@linaro.org> | 2017-03-20 12:02:33 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2017-03-20 12:02:33 +0800 |
commit | 156f7b56ee4b918b95991750e0f34da8ad416eae (patch) | |
tree | fd47da260b3c78631721f36edf01b2878358283a /drivers/usb/serial/keyspan_pda.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/keyspan_pda.c')
-rw-r--r-- | drivers/usb/serial/keyspan_pda.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 4f7e072e4e00..930be98d59b3 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -699,6 +699,19 @@ MODULE_FIRMWARE("keyspan_pda/keyspan_pda.fw"); MODULE_FIRMWARE("keyspan_pda/xircom_pgs.fw"); #endif +static int keyspan_pda_attach(struct usb_serial *serial) +{ + unsigned char num_ports = serial->num_ports; + + if (serial->num_bulk_out < num_ports || + serial->num_interrupt_in < num_ports) { + dev_err(&serial->interface->dev, "missing endpoints\n"); + return -ENODEV; + } + + return 0; +} + static int keyspan_pda_port_probe(struct usb_serial_port *port) { @@ -776,6 +789,7 @@ static struct usb_serial_driver keyspan_pda_device = { .break_ctl = keyspan_pda_break_ctl, .tiocmget = keyspan_pda_tiocmget, .tiocmset = keyspan_pda_tiocmset, + .attach = keyspan_pda_attach, .port_probe = keyspan_pda_port_probe, .port_remove = keyspan_pda_port_remove, }; |