Let usb-serial core verify that the interrupt-in endpoint is present
when binding the interface instead of the driver verifying this at every
open.
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
drivers/usb/serial/metro-usb.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 4bb29e03dae4..a64940975ac6 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -160,13 +160,6 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)
unsigned long flags = 0;
int result = 0;
- /* Make sure the urb is initialized. */
- if (!port->interrupt_in_urb) {
- dev_err(&port->dev, "%s - interrupt urb not initialized\n",
- __func__);
- return -ENODEV;
- }
-
/* Set the private data information for the port. */
spin_lock_irqsave(&metro_priv->lock, flags);
metro_priv->control_state = 0;
@@ -342,6 +335,7 @@ static struct usb_serial_driver metrousb_device = {
.description = "Metrologic USB to Serial",
.id_table = id_table,
.num_ports = 1,
+ .num_interrupt_in = 1,
.open = metrousb_open,
.close = metrousb_cleanup,
.read_int_callback = metrousb_read_int_callback,
--
2.14.2
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