linux-kernel - Re: [PATCH] rtlwifi: rtl8192cu: Fix memset using sizeof(ptr) not sizeof(*ptr)

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Message-ID: <4DC81009.5060501@lwfinger.net>
Date:	Mon, 09 May 2011 11:02:17 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Joe Perches <joe@...ches.com>
CC:	Chaoming Li <chaoming_li@...lsil.com.cn>,
	"John W. Linville" <linville@...driver.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rtlwifi: rtl8192cu: Fix memset using sizeof(ptr) not
 sizeof(*ptr)

On 05/09/2011 12:43 AM, Joe Perches wrote:
> Found via coccinelle script
>
> @@
> type T;
> T* ptr;
> expression E1;
> @@
>
> * memset(E1, 0, sizeof(ptr));
>
> Signed-off-by: Joe Perches<joe@...ches.com>
> ---
>   drivers/net/wireless/rtlwifi/rtl8192cu/trx.c |    2 +-
>   1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
> index 79c98f6..c16fc1c 100644
> --- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
> +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
> @@ -372,7 +372,7 @@ static void _rtl_rx_process(struct ieee80211_hw *hw, struct sk_buff *skb)
>   	__le16 fc;
>   	struct ieee80211_hdr *hdr;
>
> -	memset(rx_status, 0, sizeof(rx_status));
> +	memset(rx_status, 0, sizeof(*rx_status));
>   	rxdesc	= skb->data;
>   	skb_len	= skb->len;
>   	drvinfo_len = (GET_RX_DESC_DRVINFO_SIZE(rxdesc) * RTL_RX_DRV_INFO_UNIT);

ACK.

Larry
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