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
next prev parent 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56dabe01-d44a-9c6d-aee5-da606f557b93@kernel.org \
--to=krzk@kernel.org \
--cc=alim.akhtar@samsung.com \
--cc=christophe.jaillet@wanadoo.fr \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=lukasz.luba@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®