linux-kernel - Re: [PATCH][next] thunderbolt: fix memory leak of object sw

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Date:   Mon, 23 Dec 2019 12:13:17 +0200
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rajmohan Mani <rajmohan.mani@...el.com>,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] thunderbolt: fix memory leak of object sw

On Fri, Dec 20, 2019 at 10:05:26PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> In the case where the call tb_switch_exceeds_max_depth is true
> the error reurn path leaks memory in sw.  Fix this by setting
> the return error code to -EADDRNOTAVAIL and returning via the
> error exit path err_free_sw_ports to free sw. sw has been kzalloc'd
> so the free of the NULL sw->ports is fine.
>
> Addresses-Coverity: ("Resource leak")
> Fixes: b04079837b20 ("thunderbolt: Add initial support for USB4")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

Greg, can you take this to your usb-next branch where the rest of the
USB4 stuff is?

Thanks!