Bluetooth: btusb: fix memory leak in btusb_mtk_submit_wmt_recv_urb()
Driver should free `usb->setup_packet` to avoid the leak.
$ cat /sys/kernel/debug/kmemleak
unreferenced object 0xffffffa564a58080 (size 128):
backtrace:
[<
000000007eb8dd70>] kmem_cache_alloc_trace+0x22c/0x384
[<
000000008a44191d>] btusb_mtk_hci_wmt_sync+0x1ec/0x994
[btusb]
[<
00000000ca7189a3>] btusb_mtk_setup+0x6b8/0x13cc
[btusb]
[<
00000000c6105069>] hci_dev_do_open+0x290/0x974
[bluetooth]
[<
00000000a583f8b8>] hci_power_on+0xdc/0x3cc [bluetooth]
[<
000000005d80e687>] process_one_work+0x514/0xc80
[<
00000000f4d57637>] worker_thread+0x818/0xd0c
[<
00000000dc7bdb55>] kthread+0x2f8/0x3b8
[<
00000000f9999513>] ret_from_fork+0x10/0x30
Fixes:
a1c49c434e150 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Signed-off-by: Mark-YW.Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>