[syzbot] [erofs?] KMSAN: uninit-value in z_erofs_lz4_decompress (2)

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+6c746eea496f34b3161d at syzkaller.appspotmail.com

Tested on:

commit:         94da00a0 erofs: avoid debugging output for (de)compres..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test
console output: https://syzkaller.appspot.com/x/log.txt?x=13715b95e80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f711bc2a7eb1db25
dashboard link: https://syzkaller.appspot.com/bug?extid=6c746eea496f34b3161d
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.