BUG: memory leak
unreferenced object 0xffff888103951400 (size 1024):
  comm "kworker/0:2", pid 3825, jiffies 4294942291 (age 8.300s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 28 2a 12 81 88 ff ff  .........(*.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000e8bcff0e>] kmalloc include/linux/slab.h:552 [inline]
    [<00000000e8bcff0e>] kzalloc include/linux/slab.h:682 [inline]
    [<00000000e8bcff0e>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784
    [<00000000ba5edac7>] nci_allocate_device net/nfc/nci/core.c:1170 [inline]
    [<00000000ba5edac7>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132
    [<00000000bd629e31>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153
    [<00000000029185fd>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345
    [<0000000089644808>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<000000005326d634>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000c835caf5>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<00000000ee8000cd>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<0000000079c55d29>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000a8529127>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<0000000069fbff62>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<00000000eb0d79f1>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<00000000e8131b3d>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<00000000254bd2c8>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<00000000e9f0745f>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<000000005326d634>] really_probe+0x159/0x4a0 drivers/base/dd.c:554