[Outreachy kernel] [PATCH] staging/rtl8192e: replace kmalloc with kzalloc

Julia Lawall julia.lawall at inria.fr
Fri Oct 23 10:30:59 UTC 2020



On Fri, 23 Oct 2020, Elena Afanasova wrote:

> kmalloc() and memset() calls can be replaced with kzalloc().

It would be nice to say why the change is correct.

julia

> Found with Coccinelle.
>
> Signed-off-by: Elena Afanasova <eafanasova at gmail.com>
> ---
>  drivers/staging/rtl8192e/rtllib_tx.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
> index e0d79daca24a..c9959bb4ab63 100644
> --- a/drivers/staging/rtl8192e/rtllib_tx.c
> +++ b/drivers/staging/rtl8192e/rtllib_tx.c
> @@ -205,12 +205,10 @@ static struct rtllib_txb *rtllib_alloc_txb(int nr_frags, int txb_size,
>  	struct rtllib_txb *txb;
>  	int i;
>
> -	txb = kmalloc(sizeof(struct rtllib_txb) + (sizeof(u8 *) * nr_frags),
> -		      gfp_mask);
> +	txb = kzalloc(sizeof(*txb) + (sizeof(u8 *) * nr_frags), gfp_mask);
>  	if (!txb)
>  		return NULL;
>
> -	memset(txb, 0, sizeof(struct rtllib_txb));
>  	txb->nr_frags = nr_frags;
>  	txb->frag_size = cpu_to_le16(txb_size);
>
> --
> 2.25.1
>
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