[PATCH 1/2] can: kvaser_usb: leaf: refactor endpoint lookup

[Johan Hovold <johan@kernel.org>]

Use the common USB helper for looking up bulk and interrupt endpoints
instead of open coding.

Signed-off-by: Johan Hovold <johan@kernel.org>
---
 .../net/can/usb/kvaser_usb/kvaser_usb_leaf.c  | 25 ++++++-------------
 1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
index fd191ec5738b..df737cfc5ea0 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
@@ -1957,27 +1957,18 @@ static int kvaser_usb_leaf_get_berr_counter(const struct net_device *netdev,
 
 static int kvaser_usb_leaf_setup_endpoints(struct kvaser_usb *dev)
 {
-	const struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *endpoint;
-	int i;
+	struct usb_host_interface *iface_desc;
+	int ret;
 
 	iface_desc = dev->intf->cur_altsetting;
 
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
-		endpoint = &iface_desc->endpoint[i].desc;
-
-		if (!dev->bulk_in && usb_endpoint_is_bulk_in(endpoint))
-			dev->bulk_in = endpoint;
-
-		if (!dev->bulk_out && usb_endpoint_is_bulk_out(endpoint))
-			dev->bulk_out = endpoint;
+	/* use first bulk endpoint for in and out */
+	ret = usb_find_common_endpoints(iface_desc, &dev->bulk_in, &dev->bulk_out,
+					NULL, NULL);
+	if (ret)
+		return -ENODEV;
 
-		/* use first bulk endpoint for in and out */
-		if (dev->bulk_in && dev->bulk_out)
-			return 0;
-	}
-
-	return -ENODEV;
+	return 0;
 }
 
 const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops = {
-- 
2.52.0