linux-kernel - [BUG] mfd: tps65217: Got a warning when removing the module

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Message-ID: <CAMhUBjmSVGUm+9tki3J029z=JWKY8TOB73V5hQOgn_zjodhj1Q@mail.gmail.com>
Date:   Sat, 21 May 2022 14:37:57 +0800
From:   Zheyu Ma <zheyuma97@...il.com>
To:     tony@...mide.com, Lee Jones <lee.jones@...aro.org>
Cc:     linux-omap@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [BUG] mfd: tps65217: Got a warning when removing the module

Hello,

I found a bug in the driver tps65217, the following log reveals it:

[   53.301059] remove_proc_entry: removing non-empty directory
'irq/1', leaking at least 'i8042'
[   53.301774] WARNING: CPU: 0 PID: 305 at fs/proc/generic.c:717
remove_proc_entry+0x389/0x3f0
[   53.304647] RIP: 0010:remove_proc_entry+0x389/0x3f0
[   53.308912] Call Trace:
[   53.309044]  <TASK>
[   53.309158]  unregister_irq_proc+0x14c/0x170
[   53.309377]  irq_free_descs+0x94/0xe0
[   53.309777]  tps65217_remove+0x117/0x280 [tps65217]

Regards,
Zheyu Ma