linux-kernel - Re: [PATCH] ath9k

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Message-ID: <50EC44B5.6020605@lwfinger.net>
Date:	Tue, 08 Jan 2013 10:09:25 -0600
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Sujith Manoharan <sujith@...jith.org>
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

On 01/01/2013 11:26 PM, Sujith Manoharan wrote:
> Larry Finger wrote:
>> My only counter argument is that none of the other paths that get to
>> ath9k_htc_txcompletion_cb() leak the skb. It only happens for the path that goes
>> through htc_connect_service().
>
> Sure, but the TX completion handler would be invoked for every skb that is passed
> to the USB layer, including the ones that are allocated in htc_hst.c. When this
> skb goes down to hif_usb.c, a URB is allocated and I am not sure how freeing
> the skb before the USB layer invokes the completion handler for the URB is correct.
>
> I'll come up with a patch and see if kmemleak still complains.

Did I miss your posting on this issue?

Larry


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