[PATCH 1/3] wifi: at76c50x: 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>
---
 drivers/net/wireless/atmel/at76c50x-usb.c | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
index 44b04ea3cc8b..32e3e09e7680 100644
--- a/drivers/net/wireless/atmel/at76c50x-usb.c
+++ b/drivers/net/wireless/atmel/at76c50x-usb.c
@@ -2226,34 +2226,20 @@ static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
 static int at76_alloc_urbs(struct at76_priv *priv,
 			   struct usb_interface *interface)
 {
-	struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out;
-	int i;
+	struct usb_endpoint_descriptor *ep_in, *ep_out;
 	int buffer_size;
 	struct usb_host_interface *iface_desc;
+	int ret;
 
 	at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
 
 	at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__,
 		 interface->cur_altsetting->desc.bNumEndpoints);
 
-	ep_in = NULL;
-	ep_out = NULL;
 	iface_desc = interface->cur_altsetting;
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
-		endpoint = &iface_desc->endpoint[i].desc;
-
-		at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x",
-			 __func__, i, endpoint->bEndpointAddress,
-			 endpoint->bmAttributes);
-
-		if (!ep_in && usb_endpoint_is_bulk_in(endpoint))
-			ep_in = endpoint;
 
-		if (!ep_out && usb_endpoint_is_bulk_out(endpoint))
-			ep_out = endpoint;
-	}
-
-	if (!ep_in || !ep_out) {
+	ret = usb_find_common_endpoints(iface_desc, &ep_in, &ep_out, NULL, NULL);
+	if (ret) {
 		dev_err(&interface->dev, "bulk endpoints missing\n");
 		return -ENXIO;
 	}
-- 
2.52.0