linux-kernel - New underflow of regulator enable count warnings in v5.0-rc1

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Date:   Tue, 29 Jan 2019 08:48:13 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Douglas Anderson <dianders@...omium.org>,
        Mark Brown <broonie@...nel.org>
Cc:     Sebastian Reichel <sre@...nel.org>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org
Subject: New underflow of regulator enable count warnings in v5.0-rc1

Hi,

Looks like commit 5451781dadf8 ("regulator: core: Only count load for
enabled consumers") started showing new warnings with v5.0-rc cycle:

regulator-dummy: Underflow of regulator enable count

I'm seeing this at least with my pwm-vibra test case:

# rumble-test /dev/input/by-path/platform-vibrator-event 0xffff
pwm-vibrator vibrator: vibrator supply vcc not found, using dummy regulator
input: pwm-vibrator as /devices/platform/vibrator/input/input4
regulator-dummy: Underflow of regulator enable count
Upload rumble effect... id=0
regulator-dummy: Underflow of regulator enable count

Are these bogus warnings for dummy regulator or do we have
real unpaired regulator calls or somewhere?

Regards,

Tony