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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	Lukasz Luba <lukasz.luba@arm.com>,
	Alim Akhtar <alim.akhtar@samsung.com>
Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
	linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] memory: samsung: exynos5422-dmc: Avoid some over memory allocation
Date: Sun, 20 Mar 2022 13:16:53 +0100	[thread overview]
Message-ID: <56dabe01-d44a-9c6d-aee5-da606f557b93@kernel.org> (raw)
In-Reply-To: <69d7e69346986e2fdb994d4382954c932f9f0993.1647760213.git.christophe.jaillet@wanadoo.fr>

On 20/03/2022 08:10, Christophe JAILLET wrote:
> 'dmc->counter' is a 'struct devfreq_event_dev **', so there is some
> over memory allocation. 'counters_size' should be computed with
> 'sizeof(struct devfreq_event_dev *)'.
> 
> Use 'sizeof(*dmc->counter)' instead to fix it.
> 
> While at it, use devm_kcalloc() instead of devm_kzalloc()+open coded
> multiplication.
> 
> Fixes: 6e7674c3c6df ("memory: Add DMC driver for Exynos5422")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> devm_kmalloc_array() could also be used to save a few cycles because the
> array is fully initialized a few lines below.
> ---
>  drivers/memory/samsung/exynos5422-dmc.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 

Thanks, looks good. I'll take it after merge window.


Best regards,
Krzysztof

  reply	other threads:[~2022-03-20 12:17 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-20  7:10 Christophe JAILLET
2022-03-20 12:16 ` Krzysztof Kozlowski [this message]
2022-04-04 17:08 ` Krzysztof Kozlowski

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