BUG: memory leak
unreferenced object 0xffff88810eb27800 (size 96):
  comm "kworker/0:3", pid 8172, jiffies 4294942186 (age 8.970s)
  hex dump (first 32 bytes):
    40 09 70 0c 81 88 ff ff 00 00 00 00 00 00 00 00  @.p.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000a13151f8>] kmalloc include/linux/slab.h:552 [inline]
    [<00000000a13151f8>] kzalloc include/linux/slab.h:682 [inline]
    [<00000000a13151f8>] pcan_usb_pro_init+0x120/0x280 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:856
    [<00000000d1f9e763>] peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:851 [inline]
    [<00000000d1f9e763>] peak_usb_probe+0x389/0x490 drivers/net/can/usb/peak_usb/pcan_usb_core.c:949
    [<00000000e9998b01>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<00000000a0645dc8>] really_probe+0x159/0x480 drivers/base/dd.c:554
    [<000000001515230a>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738
    [<0000000089cccb76>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844
    [<00000000da69d7d0>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<0000000054cd33f9>] __device_attach+0x122/0x250 drivers/base/dd.c:912
    [<000000005acddbf1>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<00000000da7bd80e>] device_add+0x5ac/0xc30 drivers/base/core.c:2936
    [<00000000dee5dd53>] usb_set_configuration+0x9de/0xb90 drivers/usb/core/message.c:2159
    [<000000001eb164d0>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<0000000041cc565d>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<00000000a0645dc8>] really_probe+0x159/0x480 drivers/base/dd.c:554
    [<000000001515230a>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738
    [<0000000089cccb76>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844