Re: [syzbot] possible deadlock in blkcg_deactivate_policy

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+b9e4c31d0a1efb34cb03@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         b9b4c79e Merge tag 'sound-5.18-rc3' of git://git.kerne..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
kernel config:  https://syzkaller.appspot.com/x/.config?x=eb177500e563582f
dashboard link: https://syzkaller.appspot.com/bug?extid=b9e4c31d0a1efb34cb03
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=11b965c0f00000

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