WARNING in snd_pcm_plugin_build_mulaw

[Fabio Estevam]

On Tue, Sep 1, 2020 at 7:08 AM syzbot
<syzbot+23b22dc2e0b81cbfcc95 at syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    15bc20c6 Merge tag 'tty-5.9-rc3' of git://git.kernel.org/p..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1268efb1900000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650
> dashboard link: https://syzkaller.appspot.com/bug?extid=23b22dc2e0b81cbfcc95
> compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11a95f41900000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11a452f2900000
>
> The issue was bisected to:
>
> commit f3ca3f5b0966cfc2737178cca8a7a65b09991898
> Author: Fabio Estevam <festevam at gmail.com>
> Date:   Fri Mar 27 15:57:21 2020 +0000
>
>     dt-bindings: sound: cs42l51: Remove unneeded I2C unit name
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15395f41900000
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=17395f41900000
> console output: https://syzkaller.appspot.com/x/log.txt?x=13395f41900000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+23b22dc2e0b81cbfcc95 at syzkaller.appspotmail.com
> Fixes: f3ca3f5b0966 ("dt-bindings: sound: cs42l51: Remove unneeded I2C unit name")

The conclusion that this commit caused the problem is strange, since
this commit is just a yaml documentation fix.