From bdcfd44fb5b5fb8fd660e7f93f1095c507481024 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sat, 16 Apr 2016 15:30:54 -0300 Subject: Linux-libre 4.5.1-gnu --- drivers/usb/serial/cypress_m8.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers/usb/serial/cypress_m8.c') diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 01bf53392..244acb129 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -447,6 +447,11 @@ static int cypress_generic_port_probe(struct usb_serial_port *port) struct usb_serial *serial = port->serial; struct cypress_private *priv; + if (!port->interrupt_out_urb || !port->interrupt_in_urb) { + dev_err(&port->dev, "required endpoint is missing\n"); + return -ENODEV; + } + priv = kzalloc(sizeof(struct cypress_private), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -606,12 +611,6 @@ static int cypress_open(struct tty_struct *tty, struct usb_serial_port *port) cypress_set_termios(tty, port, &priv->tmp_termios); /* setup the port and start reading from the device */ - if (!port->interrupt_in_urb) { - dev_err(&port->dev, "%s - interrupt_in_urb is empty!\n", - __func__); - return -1; - } - usb_fill_int_urb(port->interrupt_in_urb, serial->dev, usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress), port->interrupt_in_urb->transfer_buffer, -- cgit v1.2.3-54-g00ecf