Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1732253

Re: [Outreachy kernel] [PATCH] Staging: ccree: Use kcalloc instead of kzalloc

Show all headers | View raw

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>
> ---
>  drivers/staging/ccree/ssi_sysfs.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/ccree/ssi_sysfs.c b/drivers/staging/ccree/ssi_sysfs.c
> index 0655658..65a0529 100644
> --- a/drivers/staging/ccree/ssi_sysfs.c
> +++ b/drivers/staging/ccree/ssi_sysfs.c
> @@ -376,7 +376,7 @@ static int sys_init_dir(struct sys_dir *sys_dir, struct ssi_drvdata *drvdata,
>  		return -ENOMEM;
>  	/* allocate memory for directory's attributes list */
>  	sys_dir->sys_dir_attr_list =
> -		kzalloc(sizeof(struct attribute *) * (num_of_attrs + 1),
> +		kcalloc((num_of_attrs + 1), sizeof(struct attribute *),

You don't need the parentheses around the first argument.

julia

>  			GFP_KERNEL);
>
>  	if (!(sys_dir->sys_dir_attr_list)) {
> --
> 2.7.4
>
> --
> You received this message because you are subscribed to the Google Groups "outreachy-kernel" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to outreachy-kernel+unsubscribe@googlegroups.com.
> To post to this group, send email to outreachy-kernel@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/outreachy-kernel/1505391353-4516-1-git-send-email-srishtishar%40gmail.com.
> For more options, visit https://groups.google.com/d/optout.
>

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH] Staging: ccree: Use kcalloc instead of kzalloc Srishti Sharma <srishtishar@gmail.com> - 2017-09-14 14:20 +0200
  Re: [Outreachy kernel] [PATCH] Staging: ccree: Use kcalloc instead  of kzalloc Julia Lawall <julia.lawall@lip6.fr> - 2017-09-14 14:40 +0200

csiph-web