Re: [PATCH -next] staging: greybus: light: Use kzalloc for allocating only one thing

[Alex Elder]

On 12/29/20 7:50 AM, Zheng Yongjun wrote:
> Use kzalloc rather than kcalloc(1,...)
>
> The semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> @@
>
> - kcalloc(1,
> + kzalloc(
>            ...)
> // </smpl>
>
> Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
> ---
>   drivers/staging/greybus/light.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c
> index d2672b65c3f4..d227382fca20 100644
> --- a/drivers/staging/greybus/light.c
> +++ b/drivers/staging/greybus/light.c
> @@ -290,7 +290,7 @@ static int channel_attr_groups_set(struct gb_channel *channel,
>   	channel->attrs = kcalloc(size + 1, sizeof(*channel->attrs), GFP_KERNEL);
>   	if (!channel->attrs)
>   		return -ENOMEM;
> -	channel->attr_group = kcalloc(1, sizeof(*channel->attr_group),
> +	channel->attr_group = kzalloc(sizeof(*channel->attr_group),
>   				      GFP_KERNEL);

Looks good but that shortens the line enough to avoid a line wrap.
Please send v2 with GFP_KERNEL on the same line as the kzalloc()
call.

					-Alex

>   	if (!channel->attr_group)
>   		return -ENOMEM;