linux-kernel - Re: [PATCH] ASoC: wm8731: Disable the regulator when probing fails

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Message-Id: <164941705528.1295287.5270437045199279011.b4-ty@kernel.org>
Date:   Fri, 08 Apr 2022 12:24:15 +0100
From:   Mark Brown <broonie@...nel.org>
To:     perex@...ex.cz, zheyuma97@...il.com, tiwai@...e.com,
        lgirdwood@...il.com
Cc:     patches@...nsource.cirrus.com, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org
Subject: Re: [PATCH] ASoC: wm8731: Disable the regulator when probing fails

On Tue, 5 Apr 2022 20:10:38 +0800, Zheyu Ma wrote:
> When the driver fails during probing, the driver should disable the
> regulator, not just handle it in wm8731_hw_init().
> 
> The following log reveals it:
> 
> [   17.812483] WARNING: CPU: 1 PID: 364 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0
> [   17.815958] RIP: 0010:_regulator_put+0x3ec/0x4e0
> [   17.824467] Call Trace:
> [   17.824774]  <TASK>
> [   17.825040]  regulator_bulk_free+0x82/0xe0
> [   17.825514]  devres_release_group+0x319/0x3d0
> [   17.825882]  i2c_device_probe+0x766/0x940
> [   17.829198]  i2c_register_driver+0xb5/0x130
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: wm8731: Disable the regulator when probing fails
      commit: 92ccbf17eeacf510cf1eed9c252d9332ca24f02d

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark