BUG: memory leak
unreferenced object 0xffff888109507600 (size 512):
  comm "kworker/1:3", pid 8443, jiffies 4294944176 (age 14.000s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000f933bd22>] kmalloc_array include/linux/slab.h:592 [inline]
    [<00000000f933bd22>] __kfifo_alloc+0xad/0x100 lib/kfifo.c:43
    [<00000000a893966e>] wacom_probe+0x1a1/0x3b0 drivers/hid/wacom_sys.c:2727
    [<000000001c1e11cd>] hid_device_probe+0x16b/0x210 drivers/hid/hid-core.c:2281
    [<000000004a53b461>] really_probe+0x159/0x480 drivers/base/dd.c:561
    [<00000000a9790ac0>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745
    [<0000000054e3d5ea>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851
    [<00000000dfd29acc>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<000000000e3558d7>] __device_attach+0x122/0x250 drivers/base/dd.c:919
    [<000000000401de7a>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<0000000050b4769c>] device_add+0x5be/0xc30 drivers/base/core.c:3091
    [<00000000480acc03>] hid_add_device+0x151/0x390 drivers/hid/hid-core.c:2437
    [<00000000dfcd6d08>] usbhid_probe+0x4d1/0x620 drivers/hid/usbhid/hid-core.c:1409
    [<00000000b2d2c7c5>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<000000004a53b461>] really_probe+0x159/0x480 drivers/base/dd.c:561
    [<00000000a9790ac0>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745
    [<0000000054e3d5ea>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851

BUG: memory leak
unreferenced object 0xffff888109507400 (size 512):
  comm "kworker/1:3", pid 8443, jiffies 4294944832 (age 7.440s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000f933bd22>] kmalloc_array include/linux/slab.h:592 [inline]
    [<00000000f933bd22>] __kfifo_alloc+0xad/0x100 lib/kfifo.c:43
    [<00000000a893966e>] wacom_probe+0x1a1/0x3b0 drivers/hid/wacom_sys.c:2727
    [<000000001c1e11cd>] hid_device_probe+0x16b/0x210 drivers/hid/hid-core.c:2281
    [<000000004a53b461>] really_probe+0x159/0x480 drivers/base/dd.c:561
    [<00000000a9790ac0>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745
    [<0000000054e3d5ea>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851
    [<00000000dfd29acc>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<000000000e3558d7>] __device_attach+0x122/0x250 drivers/base/dd.c:919
    [<000000000401de7a>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<0000000050b4769c>] device_add+0x5be/0xc30 drivers/base/core.c:3091
    [<00000000480acc03>] hid_add_device+0x151/0x390 drivers/hid/hid-core.c:2437
    [<00000000dfcd6d08>] usbhid_probe+0x4d1/0x620 drivers/hid/usbhid/hid-core.c:1409
    [<00000000b2d2c7c5>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<000000004a53b461>] really_probe+0x159/0x480 drivers/base/dd.c:561
    [<00000000a9790ac0>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745
    [<0000000054e3d5ea>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851