BUG: memory leak
unreferenced object 0xffff888110e76300 (size 96):
  comm "kworker/1:1", pid 56, jiffies 4294942680 (age 8.850s)
  hex dump (first 32 bytes):
    00 09 17 13 81 88 ff ff 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:
    [<0000000081f5bef8>] kmalloc include/linux/slab.h:552 [inline]
    [<0000000081f5bef8>] kzalloc include/linux/slab.h:682 [inline]
    [<0000000081f5bef8>] pcan_usb_pro_init+0x120/0x280 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:856
    [<00000000f52fc8d6>] peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:851 [inline]
    [<00000000f52fc8d6>] peak_usb_probe+0x389/0x490 drivers/net/can/usb/peak_usb/pcan_usb_core.c:949
    [<00000000a097c4f8>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<0000000015078d9a>] really_probe+0x159/0x480 drivers/base/dd.c:561
    [<00000000db0dcf9c>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745
    [<00000000d43d108b>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851
    [<000000002ba37505>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000b5f90ff4>] __device_attach+0x122/0x250 drivers/base/dd.c:919
    [<00000000fa6b70f5>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<000000004486b8b9>] device_add+0x5be/0xc30 drivers/base/core.c:3091
    [<000000004bb8d840>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<000000000e3165e8>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<0000000019c74261>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<0000000015078d9a>] really_probe+0x159/0x480 drivers/base/dd.c:561
    [<00000000db0dcf9c>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745
    [<00000000d43d108b>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851