From: Sakari Ailus <sakari.ailus@iki.fi>
To: SF Markus Elfring <elfring@users.sourceforge.net>
Cc: linux-media@vger.kernel.org,
Dave Hansen <dave.hansen@linux.intel.com>,
Jan Kara <jack@suse.cz>,
Javier Martinez Canillas <javier@osg.samsung.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Lorenzo Stoakes <lstoakes@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Michal Hocko <mhocko@suse.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 1/8] [media] v4l2-async: Use kmalloc_array() in v4l2_async_notifier_unregister()
Date: Tue, 27 Dec 2016 11:52:29 +0200 [thread overview]
Message-ID: <20161227095229.GL16630@valkosipuli.retiisi.org.uk> (raw)
In-Reply-To: <442a32b4-6952-3b2a-44a3-46254c5976f2@users.sourceforge.net>
Thanks!
On Mon, Dec 26, 2016 at 09:43:23PM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Mon, 26 Dec 2016 18:14:33 +0100
>
> A multiplication for the size determination of a memory allocation
> indicated that an array data structure should be processed.
> Thus use the corresponding function "kmalloc_array".
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
> drivers/media/v4l2-core/v4l2-async.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
> index 5bada202b2d3..277183f2d514 100644
> --- a/drivers/media/v4l2-core/v4l2-async.c
> +++ b/drivers/media/v4l2-core/v4l2-async.c
> @@ -202,7 +202,7 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
> if (!notifier->v4l2_dev)
> return;
>
> - dev = kmalloc(n_subdev * sizeof(*dev), GFP_KERNEL);
> + dev = kmalloc_array(n_subdev, sizeof(*dev), GFP_KERNEL);
> if (!dev) {
> dev_err(notifier->v4l2_dev->dev,
> "Failed to allocate device cache!\n");
--
Sakari Ailus
e-mail: sakari.ailus@iki.fi XMPP: sailus@retiisi.org.uk
next prev parent reply other threads:[~2016-12-27 9:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-26 20:41 [PATCH 0/8] [media] v4l2-core: Fine-tuning for some function implementations SF Markus Elfring
2016-12-26 20:43 ` [PATCH 1/8] [media] v4l2-async: Use kmalloc_array() in v4l2_async_notifier_unregister() SF Markus Elfring
2016-12-27 9:52 ` Sakari Ailus [this message]
2016-12-26 20:45 ` [PATCH 2/8] [media] v4l2-async: Delete an error message for a failed memory allocation " SF Markus Elfring
2016-12-27 11:47 ` Sakari Ailus
2017-01-31 9:55 ` Mauro Carvalho Chehab
2016-12-26 20:47 ` [PATCH 3/8] [media] videobuf-dma-sg: Use kmalloc_array() in videobuf_dma_init_user_locked() SF Markus Elfring
2016-12-26 20:48 ` [PATCH 4/8] [media] videobuf-dma-sg: Adjust 24 checks for null values SF Markus Elfring
2017-01-09 10:30 ` Dan Carpenter
2016-12-26 20:50 ` [PATCH 5/8] [media] videobuf-dma-sg: Move two assignments for error codes in __videobuf_mmap_mapper() SF Markus Elfring
2016-12-26 20:51 ` [PATCH 6/8] [media] videobuf-dma-sg: Improve a size determination " SF Markus Elfring
2016-12-26 20:52 ` [PATCH 7/8] [media] videobuf-dma-sg: Delete an unnecessary return statement in videobuf_vm_close() SF Markus Elfring
2016-12-26 20:53 ` [PATCH 8/8] [media] videobuf-dma-sg: Add some spaces for better code readability in videobuf_dma_init_user_locked() SF Markus Elfring
2016-12-27 11:51 ` [PATCH 0/8] [media] v4l2-core: Fine-tuning for some function implementations Sakari Ailus
2017-01-02 14:54 ` Hans Verkuil
2017-09-22 20:08 ` SF Markus Elfring
2017-09-23 7:35 ` Hans Verkuil
2017-09-23 15:27 ` SF Markus Elfring
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