usbvision_i2c_register: can't write reg videodev: could not get a free minor usb 1-1: USBVision[128]: video_register_device() failed ------------[ cut here ]------------ WARNING: CPU: 0 PID: 12 at fs/sysfs/file.c:327 sysfs_create_file_ns+0x13c/0x1c0 fs/sysfs/file.c:327 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xef/0x16e lib/dump_stack.c:118 panic+0x2aa/0x6e1 kernel/panic.c:221 __warn.cold+0x2f/0x30 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:sysfs_create_file_ns+0x13c/0x1c0 fs/sysfs/file.c:327 Code: 85 82 00 00 00 41 55 48 8b 7b 30 31 d2 48 89 ee 44 8b 4c 24 50 44 8b 44 24 40 e8 af f9 ff ff 41 89 c5 58 eb 0d e8 c4 08 b0 ff <0f> 0b 41 bd ea ff ff ff e8 b7 08 b0 ff 44 89 e8 48 ba 00 00 00 00 RSP: 0018:ffff8881da227168 EFLAGS: 00010293 RAX: ffff8881da211880 RBX: ffff8881cd698390 RCX: ffffffff82781874 RDX: 0000000000000000 RSI: ffffffff818f595c RDI: ffff8881cd698390 RBP: ffffffff87a37fc0 R08: ffff8881da211880 R09: ffffed1039ad3116 R10: ffffed1039ad3115 R11: ffff8881cd6988af R12: 1ffff1103b444e2e R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8881cd6983c0 sysfs_create_file include/linux/sysfs.h:530 [inline] device_create_file+0xe6/0x1d0 drivers/base/core.c:1853 usbvision_create_sysfs drivers/media/usb/usbvision/usbvision-video.c:252 [inline] usbvision_probe.cold+0x1c0f/0x1f21 drivers/media/usb/usbvision/usbvision-video.c:1535 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:361 really_probe+0x290/0xac0 drivers/base/dd.c:551 driver_probe_device+0x223/0x350 drivers/base/dd.c:724 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x217/0x390 drivers/base/dd.c:897 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1459/0x1bf0 drivers/base/core.c:2487 usb_set_configuration+0xe47/0x17d0 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0xaf/0x140 drivers/usb/core/driver.c:266 really_probe+0x290/0xac0 drivers/base/dd.c:551 driver_probe_device+0x223/0x350 drivers/base/dd.c:724 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x217/0x390 drivers/base/dd.c:897 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1459/0x1bf0 drivers/base/core.c:2487 usb_new_device.cold+0x540/0xcd0 drivers/usb/core/hub.c:2538 hub_port_connect drivers/usb/core/hub.c:5185 [inline] hub_port_connect_change drivers/usb/core/hub.c:5325 [inline] port_event drivers/usb/core/hub.c:5471 [inline] hub_event+0x21cb/0x4300 drivers/usb/core/hub.c:5553 process_one_work+0x94b/0x1620 kernel/workqueue.c:2264 worker_thread+0x96/0xe20 kernel/workqueue.c:2410 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..