Re: [syzbot] [serial?] possible deadlock in tty_port_tty_get

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+223c7461c58c58a4cb10@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         65aca32e Merge tag 'mm-hotfixes-stable-2023-03-24-17-0..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=12790be5c80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=8ef27c4ff127cda5
dashboard link: https://syzkaller.appspot.com/bug?extid=223c7461c58c58a4cb10
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11270cd5c80000

Note: testing is done by a robot and is best-effort only.