BUG: memory leak
unreferenced object 0xffff888111d9d880 (size 96):
  comm "kworker/1:2", pid 3747, jiffies 4294942277 (age 8.970s)
  hex dump (first 32 bytes):
    00 09 54 11 81 88 ff ff 00 00 00 00 00 00 00 00  ..T.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000670cd9cd>] kmalloc include/linux/slab.h:552 [inline]
    [<00000000670cd9cd>] kzalloc include/linux/slab.h:682 [inline]
    [<00000000670cd9cd>] pcan_usb_pro_init+0x120/0x280 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:856
    [<0000000059e5ed72>] peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:851 [inline]
    [<0000000059e5ed72>] peak_usb_probe+0x389/0x490 drivers/net/can/usb/peak_usb/pcan_usb_core.c:949
    [<00000000d13661f7>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<00000000b42d738d>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000da9e0824>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<00000000865a85a8>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<0000000063afe355>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<0000000011a79fa7>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<00000000fd574079>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<000000006f28ff8f>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<00000000c8ef9978>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<000000004ae862b7>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<00000000fe8734e1>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<00000000b42d738d>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000da9e0824>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<00000000865a85a8>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846