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USB: serial: keyspan_pda: simplify endpoint check

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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.

Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2017-03-02 12:51:25 +01:00
parent fb527736eb
commit b714d5dc06
1 changed files with 2 additions and 14 deletions
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16
drivers/usb/serial/keyspan_pda.c
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@ -708,19 +708,6 @@ 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)
{
@ -784,6 +771,8 @@ static struct usb_serial_driver keyspan_pda_device = {
.description = "Keyspan PDA",
.id_table = id_table_std,
.num_ports = 1,
.num_bulk_out = 1,
.num_interrupt_in = 1,
.dtr_rts = keyspan_pda_dtr_rts,
.open = keyspan_pda_open,
.close = keyspan_pda_close,
@ -798,7 +787,6 @@ 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,
};