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USB: serial: pl2303: 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 12:51:31 +01:00
parent 32814c87f4
commit 590298b223
1 changed files with 3 additions and 8 deletions
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11
drivers/usb/serial/pl2303.c
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@ -221,17 +221,9 @@ static int pl2303_probe(struct usb_serial *serial,
static int pl2303_startup(struct usb_serial *serial) static int pl2303_startup(struct usb_serial *serial)
{ {
struct pl2303_serial_private *spriv; struct pl2303_serial_private *spriv;
unsigned char num_ports = serial->num_ports;
enum pl2303_type type = TYPE_01; enum pl2303_type type = TYPE_01;
unsigned char *buf; unsigned char *buf;
if (serial->num_bulk_in < num_ports ||
serial->num_bulk_out < num_ports ||
serial->num_interrupt_in < num_ports) {
dev_err(&serial->interface->dev, "missing endpoints\n");
return -ENODEV;
}
spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
if (!spriv) if (!spriv)
return -ENOMEM; return -ENOMEM;
@ -939,6 +931,9 @@ static struct usb_serial_driver pl2303_device = {
}, },
.id_table = id_table, .id_table = id_table,
.num_ports = 1, .num_ports = 1,
.num_bulk_in = 1,
.num_bulk_out = 1,
.num_interrupt_in = 1,
.bulk_in_size = 256, .bulk_in_size = 256,
.bulk_out_size = 256, .bulk_out_size = 256,
.open = pl2303_open, .open = pl2303_open,