INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 3362 Comm: syz-executor.2 Not tainted 5.2.0-rc6+ #15
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 assign_lock_key kernel/locking/lockdep.c:775 [inline]
 register_lock_class+0x11ae/0x1240 kernel/locking/lockdep.c:1084
 __lock_acquire+0x11d/0x5340 kernel/locking/lockdep.c:3674
 lock_acquire+0x100/0x2b0 kernel/locking/lockdep.c:4303
 __mutex_lock_common kernel/locking/mutex.c:926 [inline]
 __mutex_lock+0xf9/0x12b0 kernel/locking/mutex.c:1073
 usbtouch_open+0x101/0x310 drivers/input/touchscreen/usbtouchscreen.c:1537
 input_open_device+0x170/0x280 drivers/input/input.c:607
 evdev_open_device drivers/input/evdev.c:433 [inline]
 evdev_open+0x3fe/0x510 drivers/input/evdev.c:518
 chrdev_open+0x219/0x5c0 fs/char_dev.c:413
 do_dentry_open+0x497/0x1040 fs/open.c:778
 do_last fs/namei.c:3416 [inline]
 path_openat+0x1430/0x3ff0 fs/namei.c:3533
 do_filp_open+0x1a1/0x280 fs/namei.c:3563
 do_sys_open+0x3c0/0x580 fs/open.c:1070
 do_syscall_64+0xb7/0x560 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413711
Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f32e68717a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 0000000000413711
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f32e6871850
RBP: 000000000075bf20 R08: 000000000000000f R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f32e68726d4
R13: 00000000004c8b97 R14: 00000000004df9c8 R15: 00000000ffffffff