From: Jason Gerecke <killertofu@gmail.com>
To: Jiri Kosina <jikos@kernel.org>
Cc: Linux Input <linux-input@vger.kernel.org>,
Benjamin Tissoires <benjamin.tissoires@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
SF Markus Elfring <elfring@users.sourceforge.net>,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 1/3] HID: Wacom: Use devm_kcalloc() in two functions
Date: Mon, 5 Jun 2017 08:29:57 -0700 [thread overview]
Message-ID: <CANRwn3QbNn4EA-FDmz1jnFUgjJ0tH63MCwOGcTCodvFtaBeeAQ@mail.gmail.com> (raw)
In-Reply-To: <d0224def-26ba-d33b-e9be-a6218259c8e4@users.sourceforge.net>
Going through old mail and noticed that these three patches seem to
have been overlooked (at least, I don't see them in Jiri's
branches...). For the set:
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Jason
---
Now instead of four in the eights place /
you’ve got three, ‘Cause you added one /
(That is to say, eight) to the two, /
But you can’t take seven from three, /
So you look at the sixty-fours....
On Tue, Apr 25, 2017 at 8:13 AM, SF Markus Elfring
<elfring@users.sourceforge.net> wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Tue, 25 Apr 2017 16:06:08 +0200
>
> * Multiplications for the size determination of memory allocations
> indicated that array data structures should be processed.
> Thus use the corresponding function "devm_kcalloc".
>
> This issue was detected by using the Coccinelle software.
>
> * Replace the specification of data structures by pointer dereferences
> to make the corresponding size determination a bit safer according to
> the Linux coding style convention.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
> drivers/hid/wacom_sys.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
> index 0022c0dac88a..550faf8819ea 100644
> --- a/drivers/hid/wacom_sys.c
> +++ b/drivers/hid/wacom_sys.c
> @@ -1245,7 +1245,7 @@ static int wacom_led_groups_alloc_and_register_one(struct device *dev,
> if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL))
> return -ENOMEM;
>
> - leds = devm_kzalloc(dev, sizeof(struct wacom_led) * count, GFP_KERNEL);
> + leds = devm_kcalloc(dev, count, sizeof(*leds), GFP_KERNEL);
> if (!leds) {
> error = -ENOMEM;
> goto err;
> @@ -1345,8 +1345,7 @@ static int wacom_led_groups_allocate(struct wacom *wacom, int count)
> struct wacom_group_leds *groups;
> int error;
>
> - groups = devm_kzalloc(dev, sizeof(struct wacom_group_leds) * count,
> - GFP_KERNEL);
> + groups = devm_kcalloc(dev, count, sizeof(*groups), GFP_KERNEL);
> if (!groups)
> return -ENOMEM;
>
> --
> 2.12.2
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-input" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2017-06-05 15:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-25 15:12 [PATCH 0/3] HID-Wacom: Fine-tuning for seven function implementations SF Markus Elfring
2017-04-25 15:13 ` [PATCH 1/3] HID: Wacom: Use devm_kcalloc() in two functions SF Markus Elfring
2017-06-05 15:29 ` Jason Gerecke [this message]
2017-04-25 15:14 ` [PATCH 2/3] HID: Wacom: Improve size determinations in three functions SF Markus Elfring
2017-04-25 15:15 ` [PATCH 3/3] HID: Wacom: Delete two unnecessary return statements SF Markus Elfring
2017-05-15 17:18 ` [PATCH 0/3] HID-Wacom: Fine-tuning for seven function implementations Jason Gerecke
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