BUG: memory leak
unreferenced object 0xffff888108482c00 (size 1024):
  comm "kworker/0:1", pid 7, jiffies 4294945665 (age 13.770s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 b8 42 08 81 88 ff ff  ..........B.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000006de3b989>] kmalloc include/linux/slab.h:552 [inline]
    [<000000006de3b989>] kzalloc include/linux/slab.h:682 [inline]
    [<000000006de3b989>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784
    [<000000006bac5d36>] nci_allocate_device net/nfc/nci/core.c:1170 [inline]
    [<000000006bac5d36>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132
    [<000000001e5149ac>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153
    [<00000000ccc4b961>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345
    [<000000008bb50aca>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<000000004e4cef3a>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<000000008102f2c9>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<000000006c5b2299>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<00000000466bb8e2>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<000000002ed48ffa>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<00000000ac8bc900>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<000000007b3826a8>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<0000000005eb2460>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<000000000d02c172>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<00000000c019c78b>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<000000004e4cef3a>] really_probe+0x159/0x4a0 drivers/base/dd.c:554