Enable endpoint checking.

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fe46a7dd189e
---
 drivers/net/wireless/ath/ar5523/ar5523.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index 815f8f599f5d..5cac4a6452db 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -1594,6 +1594,20 @@ static int ar5523_probe(struct usb_interface *intf,
 	struct ar5523 *ar;
 	int error = -ENOMEM;
 
+	static u8 bulk_ep_addr[] = {
+		AR5523_CMD_TX_PIPE | USB_DIR_OUT,
+		AR5523_DATA_TX_PIPE | USB_DIR_OUT,
+		AR5523_CMD_RX_PIPE | USB_DIR_IN,
+		AR5523_DATA_RX_PIPE | USB_DIR_IN,
+		0};
+
+	if (!usb_check_bulk_endpoints(intf, bulk_ep_addr)) {
+		dev_err(&dev->dev,
+			"Could not find all expected endpoints\n");
+		error = -ENODEV;
+		goto out;
+	}
+
 	/*
 	 * Load firmware if the device requires it.  This will return
 	 * -ENXIO on success and we'll get called back afer the usb

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+1bc2c2afd44f820a669f@syzkaller.appspotmail.com

Tested on:

commit:         fe46a7dd Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=1589c5a1180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=330805b1287ebcda
dashboard link: https://syzkaller.appspot.com/bug?extid=1bc2c2afd44f820a669f
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=12b5b623180000

Note: testing is done by a robot and is best-effort only.