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USB: serial: relax generic driver bulk-endpoint requirement

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Relax the generic driver bulk-endpoint requirement. The driver handles
devices without bulk-out endpoints just fine these days.

Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2017-03-16 17:13:33 +01:00
parent a794499b26
commit 6538808c56
1 changed files with 4 additions and 2 deletions
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6
drivers/usb/serial/generic.c
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@ -52,10 +52,12 @@ static int usb_serial_generic_calc_num_ports(struct usb_serial *serial,
struct usb_serial_endpoints *epds)
{
struct device *dev = &serial->interface->dev;
int num_ports = epds->num_bulk_out;
int num_ports;
num_ports = max(epds->num_bulk_in, epds->num_bulk_out);
if (num_ports == 0) {
dev_err(dev, "Generic device with no bulk out, not allowed.\n");
dev_err(dev, "device has no bulk endpoints\n");
return -ENODEV;
}