From: Johan Hovold <johan@kernel.org>
Date: Mon, 30 Mar 2026 09:50:34 +0000 (+0200)
Subject: HID: usbhid: refactor endpoint lookup
X-Git-Url: http://git.ipfire.org/index.cgi?a=commitdiff_plain;h=2fcc5e0ee7989154c4a5d169bcc9565cf2d62147;p=thirdparty%2Fkernel%2Flinux.git

HID: usbhid: refactor endpoint lookup

Use the common USB helper for looking up interrupt-in endpoints instead
of open coding.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
---

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index ddd5d77fb5a5e..2447bc7cb7a1d 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1363,19 +1363,17 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
 {
 	struct usb_host_interface *interface = intf->cur_altsetting;
 	struct usb_device *dev = interface_to_usbdev(intf);
+	struct usb_endpoint_descriptor *ep;
 	struct usbhid_device *usbhid;
 	struct hid_device *hid;
-	unsigned int n, has_in = 0;
 	size_t len;
 	int ret;
 
 	dbg_hid("HID probe called for ifnum %d\n",
 			intf->altsetting->desc.bInterfaceNumber);
 
-	for (n = 0; n < interface->desc.bNumEndpoints; n++)
-		if (usb_endpoint_is_int_in(&interface->endpoint[n].desc))
-			has_in++;
-	if (!has_in) {
+	ret = usb_find_int_in_endpoint(interface, &ep);
+	if (ret) {
 		hid_err(intf, "couldn't find an input interrupt endpoint\n");
 		return -ENODEV;
 	}