linux-kernel - Re: [PATCH v2 03/11] ASoC: compress: Fix memory leak from snd_soc_new

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Message-ID: <20190625120141.GQ5316@sirena.org.uk>
Date:   Tue, 25 Jun 2019 13:01:41 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 03/11] ASoC: compress: Fix memory leak from
 snd_soc_new_compress

On Mon, Jun 17, 2019 at 01:36:36PM +0200, Amadeusz Sławiński wrote:
> Change kzalloc to devm_kzalloc, so compr gets automatically freed when
> it's no longer needed.
> 
> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>
> ---
>  sound/soc/soc-compress.c | 17 ++++++-----------
>  1 file changed, 6 insertions(+), 11 deletions(-)

This will mean it'll get freed at some point if the driver for the
device it's allocated against gets removed but it will still get
allocated every time the card gets instntiated (eg, due to deferred
probe or due to some other driver getting probed and removed).

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