BUG: memory leak
unreferenced object 0xffff88810dfabe00 (size 512):
  comm "kworker/0:0", pid 5, jiffies 4294942439 (age 8.710s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 ff ff ff ff ff ff ff ff  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000008ae15269>] kmalloc include/linux/slab.h:552 [inline]
    [<000000008ae15269>] kzalloc include/linux/slab.h:682 [inline]
    [<000000008ae15269>] pcan_usb_fd_init+0x181/0x210 drivers/net/can/usb/peak_usb/pcan_usb_fd.c:873
    [<0000000057544541>] peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:851 [inline]
    [<0000000057544541>] peak_usb_probe+0x389/0x490 drivers/net/can/usb/peak_usb/pcan_usb_core.c:949
    [<00000000423c96b6>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<000000004a680011>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000d5518b8a>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<000000009d724943>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<0000000088984682>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000b4e15e27>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<000000003f33afdc>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<0000000071e015d1>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<000000004fcbc884>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<00000000d490ef0e>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<0000000048439b10>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<000000004a680011>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000d5518b8a>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<000000009d724943>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846