From: Julia Lawall <julia.lawall@lip6.fr>
To: Srishti Sharma <srishtishar@gmail.com>
Cc: oleg.drokin@intel.com, andreas.dilger@intel.com,
jsimmons@infradead.org, gregkh@linuxfoundation.org,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
outreachy-kernel@googlegroups.com
Subject: Re: [Outreachy kernel] [PATCH] Staging: lustre: obdclass: Use kcalloc instead of kzalloc
Date: Thu, 14 Sep 2017 14:30:49 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1709141430330.3185@hadrien> (raw)
In-Reply-To: <1505390789-3814-1-git-send-email-srishtishar@gmail.com>
On Thu, 14 Sep 2017, Srishti Sharma wrote:
> Use kcalloc instead of kzalloc to check for overflow before
> multiplication. Done using the following semantic patch by
> coccinelle.
>
> http://coccinelle.lip6.fr/rules/kzalloc.cocci
>
> Signed-off-by: Srishti Sharma <srishtishar@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
> ---
> drivers/staging/lustre/lustre/obdclass/cl_object.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
> index 95c7fa3..28cb8489 100644
> --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
> +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
> @@ -1016,7 +1016,7 @@ int cl_global_init(void)
> {
> int result;
>
> - cl_envs = kzalloc(sizeof(*cl_envs) * num_possible_cpus(), GFP_KERNEL);
> + cl_envs = kcalloc(num_possible_cpus(), sizeof(*cl_envs), GFP_KERNEL);
> if (!cl_envs) {
> result = -ENOMEM;
> goto out;
> --
> 2.7.4
>
> --
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prev parent reply other threads:[~2017-09-14 12:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-14 12:06 Srishti Sharma
2017-09-14 12:30 ` Julia Lawall [this message]
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