Re: [PATCH 2/2] staging: rtl8712: use kcalloc instead of kmalloc(x*y, ...)

From: Jonas Gorski
Date: Sat Jun 14 2014 - 10:16:20 EST


On Sat, Jun 14, 2014 at 1:48 PM, Vitaly Osipov <vitaly.osipov@xxxxxxxxx> wrote:
> Replaced kmalloc(x*y, ...) with kcalloc(x,y,...)
>
> Signed-off-by: Vitaly Osipov <vitaly.osipov@xxxxxxxxx>
> ---
> drivers/staging/rtl8712/rtl871x_mlme.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
> index 26b8f37..8561841 100644
> --- a/drivers/staging/rtl8712/rtl871x_mlme.c
> +++ b/drivers/staging/rtl8712/rtl871x_mlme.c
> @@ -62,8 +62,7 @@ static sint _init_mlme_priv(struct _adapter *padapter)
> _init_queue(&(pmlmepriv->scanned_queue));
> set_scanned_network_val(pmlmepriv, 0);
> memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
> - pbuf = kmalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)),
> - GFP_ATOMIC);
> + pbuf = kcalloc(MAX_BSS_CNT, sizeof(struct wlan_network), GFP_ATOMIC);

kcalloc() additionally zeroes the memory, so this is a change in
behaviour. A better replacement would be kmalloc_array().


Jonas
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