BUG: memory leak
unreferenced object 0xffff88810a3d0b78 (size 8):
  comm "kworker/1:0", pid 23, jiffies 4294948214
  hex dump (first 8 bytes):
    80 93 ed 1c 81 88 ff ff                          ........
  backtrace (crc 8634123d):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4574 [inline]
    slab_alloc_node mm/slub.c:4898 [inline]
    __do_kmalloc_node mm/slub.c:5294 [inline]
    __kvmalloc_node_noprof+0x537/0x760 mm/slub.c:6832
    v4l2_ctrl_handler_init_class+0x59/0x90 drivers/media/v4l2-core/v4l2-ctrls-core.c:1728
    msi2500_probe+0x2a9/0x390 drivers/media/usb/msi2500/msi2500.c:1248
    usb_probe_interface+0x22a/0x4e0 drivers/usb/core/driver.c:396
    call_driver_probe drivers/base/dd.c:631 [inline]
    really_probe+0x12f/0x3a0 drivers/base/dd.c:709
    __driver_probe_device+0xe8/0x1a0 drivers/base/dd.c:871
    driver_probe_device+0x2a/0x120 drivers/base/dd.c:901
    __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1029
    bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500
    __device_attach+0xf9/0x290 drivers/base/dd.c:1101
    device_initial_probe+0x6f/0x80 drivers/base/dd.c:1156
    bus_probe_device+0x3e/0xb0 drivers/base/bus.c:613
    device_add+0x99b/0xc70 drivers/base/core.c:3706
    usb_set_configuration+0x8f5/0xb80 drivers/usb/core/message.c:2268
    usb_generic_driver_probe+0x73/0xb0 drivers/usb/core/generic.c:250
    usb_probe_device+0x78/0x1f0 drivers/usb/core/driver.c:291

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF