linux-kernel - Re: [PATCH v2] ASoC: codecs: Check for error pointer after calling devm_regmap_init

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Date:   Tue, 25 Jan 2022 10:20:17 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Jiasheng Jiang <jiasheng@...as.ac.cn>
Cc:     cezary.rojewski@...el.com, tiwai@...e.com, lgirdwood@...il.com,
        linux-kernel@...r.kernel.org, srinivas.kandagatla@...aro.org,
        perex@...ex.cz, alsa-devel@...a-project.org,
        bgoswami@...eaurora.org
Subject: Re: [PATCH v2] ASoC: codecs: Check for error pointer after calling devm_regmap_init_mmio

On Fri, 14 Jan 2022 14:57:13 +0800, Jiasheng Jiang wrote:
> Since the possible failure of the devm_regmap_init_mmio(), it will
> return error pointer and be assigned to the regmap.
> Then the error pointer will be dereferenced.
> For example rx->regmap will be used in rx_macro_mclk_enable().
> Therefore, it should be better to check it.
> 
> 
> [...]

Applied to

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

Thanks!

[1/1] ASoC: codecs: Check for error pointer after calling devm_regmap_init_mmio
      commit: aa505ecccf2ae7546e0e262d574e18a9241f3005

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