[PATCH 1/2] Bluetooth: btusb: 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/bluetooth/btusb.c | 51 ++++++---------------------------------
 1 file changed, 8 insertions(+), 43 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 4c5344ce16c1..c4aee8e761b6 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3674,31 +3674,14 @@ static inline int __set_diag_interface(struct hci_dev *hdev)
 {
 	struct btusb_data *data = hci_get_drvdata(hdev);
 	struct usb_interface *intf = data->diag;
-	int i;
+	int ret;
 
 	if (!data->diag)
 		return -ENODEV;
 
-	data->diag_tx_ep = NULL;
-	data->diag_rx_ep = NULL;
-
-	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
-		struct usb_endpoint_descriptor *ep_desc;
-
-		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
-
-		if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
-			data->diag_tx_ep = ep_desc;
-			continue;
-		}
-
-		if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
-			data->diag_rx_ep = ep_desc;
-			continue;
-		}
-	}
-
-	if (!data->diag_tx_ep || !data->diag_rx_ep) {
+	ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep,
+					&data->diag_tx_ep, NULL, NULL);
+	if (ret) {
 		bt_dev_err(hdev, "invalid diagnostic descriptors");
 		return -ENODEV;
 	}
@@ -4024,12 +4007,11 @@ static struct hci_drv btusb_hci_drv = {
 static int btusb_probe(struct usb_interface *intf,
 		       const struct usb_device_id *id)
 {
-	struct usb_endpoint_descriptor *ep_desc;
 	struct gpio_desc *reset_gpio;
 	struct btusb_data *data;
 	struct hci_dev *hdev;
 	unsigned ifnum_base;
-	int i, err, priv_size;
+	int err, priv_size;
 
 	BT_DBG("intf %p id %p", intf, id);
 
@@ -4066,26 +4048,9 @@ static int btusb_probe(struct usb_interface *intf,
 	if (!data)
 		return -ENOMEM;
 
-	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
-		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
-
-		if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
-			data->intr_ep = ep_desc;
-			continue;
-		}
-
-		if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
-			data->bulk_tx_ep = ep_desc;
-			continue;
-		}
-
-		if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
-			data->bulk_rx_ep = ep_desc;
-			continue;
-		}
-	}
-
-	if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
+	err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep,
+					&data->bulk_tx_ep, &data->intr_ep, NULL);
+	if (err) {
 		kfree(data);
 		return -ENODEV;
 	}
-- 
2.52.0