USB: yurex: refactor endpoint retrieval
Use the new endpoint helpers to lookup the required interrupt-in
endpoint.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 54e53ac..58abdf2 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -195,8 +195,8 @@
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
int retval = -ENOMEM;
- int i;
DEFINE_WAIT(wait);
+ int res;
/* allocate memory for our device state and initialize it */
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@@ -212,20 +212,14 @@
/* set up the endpoint information */
iface_desc = interface->cur_altsetting;
- for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
- endpoint = &iface_desc->endpoint[i].desc;
-
- if (usb_endpoint_is_int_in(endpoint)) {
- dev->int_in_endpointAddr = endpoint->bEndpointAddress;
- break;
- }
- }
- if (!dev->int_in_endpointAddr) {
- retval = -ENODEV;
+ res = usb_find_int_in_endpoint(iface_desc, &endpoint);
+ if (res) {
dev_err(&interface->dev, "Could not find endpoints\n");
+ retval = res;
goto error;
}
+ dev->int_in_endpointAddr = endpoint->bEndpointAddress;
/* allocate control URB */
dev->cntl_urb = usb_alloc_urb(0, GFP_KERNEL);