netdev - Re: [PATCH] ath9k_htc: Fix skb leaks

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Message-ID: <20707.47067.474241.813195@gargle.gargle.HOWL>
Date:	Wed, 2 Jan 2013 10:00:19 +0530
From:	Sujith Manoharan <sujith@...jith.org>
To:	Larry Finger <Larry.Finger@...inger.net>
Cc:	linville@...driver.com, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org, Stable <stable@...r.kernel.org>,
	"Luis R. Rodriguez" <mcgrof@....qualcomm.com>,
	Vasanthakumar Thiagarajan <vthiagar@....qualcomm.com>,
	Senthil Balasubramanian <senthilb@....qualcomm.com>,
	ath9k-devel@...ts.ath9k.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ath9k_htc: Fix skb leaks

Larry Finger wrote:
> diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
> index 4a9570d..a304748 100644
> --- a/drivers/net/wireless/ath/ath9k/htc_hst.c
> +++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
> @@ -278,10 +278,12 @@ int htc_connect_service(struct htc_target *target,
>  	if (!time_left) {
>  		dev_err(target->dev, "Service connection timeout for: %d\n",
>  			service_connreq->service_id);
> -		return -ETIMEDOUT;
> +		ret = -ETIMEDOUT;
> +		goto err;
>  	}
>  
>  	*conn_rsp_epid = target->conn_rsp_epid;
> +	kfree_skb(skb);
>  	return 0;
>  err:
>  	kfree_skb(skb);

The allocated skb should be freed in the TX completion hander,
ath9k_htc_txcompletion_cb() - doing it in htc_connect_service() is wrong, I think.

Sujith
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