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References: <20220319162006.13c60c1f@jic23-huawei> <20220319193459.2628876-1-ztong0001@gmail.com>
In-Reply-To: <20220319193459.2628876-1-ztong0001@gmail.com>
From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Mon, 21 Mar 2022 10:27:37 +0200
Message-ID: <CAHp75Vfk+CQZoz+s5PuSTBb0Nb4KLB+yoNiTCJQ4NktxV1nycQ@mail.gmail.com>
Subject: Re: [PATCH v2] iio:imu:bmi160: disable regulator in error path
To:     Tong Zhang <ztong0001@gmail.com>
Cc:     Jonathan Cameron <jic23@kernel.org>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Sean Nyekjaer <sean@geanix.com>,
        Alexandru Ardelean <ardeleanalex@gmail.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Jonathan Albrieux <jonathan.albrieux@gmail.com>,
        linux-iio <linux-iio@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Sun, Mar 20, 2022 at 8:44 AM Tong Zhang <ztong0001@gmail.com> wrote:
>
> Regulator should be disabled in error path as mentioned in _regulator_put().
> Also disable accel if gyro cannot be enabled.
>
> [   16.233604] WARNING: CPU: 0 PID: 2177 at drivers/regulator/core.c:2257 _regulator_put
> [   16.240453] Call Trace:
> [   16.240572]  <TASK>
> [   16.240676]  regulator_put+0x26/0x40
> [   16.240853]  regulator_bulk_free+0x26/0x50
> [   16.241050]  release_nodes+0x3f/0x70
> [   16.241225]  devres_release_group+0x147/0x1c0
> [   16.241441]  ? bmi160_core_probe+0x175/0x3a0 [bmi160_core]

Haven't I given you a tag?

-- 
With Best Regards,
Andy Shevchenko