BUG: memory leak unreferenced object 0xffff88810f272200 (size 512): comm "kworker/0:2", pid 56, jiffies 4294942978 (age 13.930s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 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: [<00000000b776e4f9>] kmalloc_array include/linux/slab.h:592 [inline] [<00000000b776e4f9>] __kfifo_alloc+0xad/0x100 lib/kfifo.c:43 [<00000000dc57bd04>] wacom_probe+0x1a1/0x3b0 drivers/hid/wacom_sys.c:2727 [<0000000019feb10a>] hid_device_probe+0x16b/0x210 drivers/hid/hid-core.c:2281 [<000000003262b9ef>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000593929d8>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<00000000468a455f>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<000000004361054d>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000060a3d49>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<000000003c09c9f5>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<0000000025d09d82>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<000000002093d693>] hid_add_device+0x151/0x390 drivers/hid/hid-core.c:2437 [<0000000050b03375>] usbhid_probe+0x412/0x560 drivers/hid/usbhid/hid-core.c:1407 [<000000005b9e7e0d>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<000000003262b9ef>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000593929d8>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<00000000468a455f>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 BUG: memory leak unreferenced object 0xffff88810a51ce00 (size 512): comm "kworker/1:3", pid 4913, jiffies 4294943626 (age 7.450s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 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: [<00000000b776e4f9>] kmalloc_array include/linux/slab.h:592 [inline] [<00000000b776e4f9>] __kfifo_alloc+0xad/0x100 lib/kfifo.c:43 [<00000000dc57bd04>] wacom_probe+0x1a1/0x3b0 drivers/hid/wacom_sys.c:2727 [<0000000019feb10a>] hid_device_probe+0x16b/0x210 drivers/hid/hid-core.c:2281 [<000000003262b9ef>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000593929d8>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<00000000468a455f>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<000000004361054d>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000060a3d49>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<000000003c09c9f5>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<0000000025d09d82>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<000000002093d693>] hid_add_device+0x151/0x390 drivers/hid/hid-core.c:2437 [<0000000050b03375>] usbhid_probe+0x412/0x560 drivers/hid/usbhid/hid-core.c:1407 [<000000005b9e7e0d>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<000000003262b9ef>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000593929d8>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<00000000468a455f>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844