[syzbot] inconsistent lock state in sync_info_debugfs_show

[syzbot]

syzbot has bisected this issue to:

commit 997acaf6b4b59c6a9c259740312a69ea549cc684
Author: Mark Rutland <mark.rutland at arm.com>
Date:   Mon Jan 11 15:37:07 2021 +0000

    lockdep: report broken irq restoration

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=115b350d880000
start commit:   84368d882b96 Merge tag 'soc-fixes-6.1-3' of git://git.kern..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=135b350d880000
console output: https://syzkaller.appspot.com/x/log.txt?x=155b350d880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6f4e5e9899396248
dashboard link: https://syzkaller.appspot.com/bug?extid=007bfe0f3330f6e1e7d1
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=164376f9880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16cf0965880000

Reported-by: syzbot+007bfe0f3330f6e1e7d1 at syzkaller.appspotmail.com
Fixes: 997acaf6b4b5 ("lockdep: report broken irq restoration")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection