Re: [irda-users] [PATCH] irlmp_unregister_link needs to free lsapshashbin

From: Samuel Ortiz
Date: Sun Oct 14 2007 - 05:30:38 EST


Hi Hinko,

On Fri, Oct 12, 2007 at 02:56:27PM +0200, hinko.kocevar@xxxxxxxxxxxx wrote:
> Hi,
>
> While testing the mcs7780 based IrDA USB dongle I've stumbled upon
> memory leak in irlmp_unregister_link(). Hashbin for lsaps is created in
> irlmp_register_link and should probably be freed in irlmp_unregister_link().
>
> Signed-off-by: Hinko Kocevar <hinko.kocevar@xxxxxxxxxxxx>
>
> Best regards,
> Hinko
>
> ----
>
>

> --- linux-2.6.23/net/irda/irlmp.c.orig 2007-10-12 14:05:17.000000000 +0200
> +++ linux-2.6.23/net/irda/irlmp.c 2007-10-12 14:05:41.000000000 +0200
> @@ -353,6 +353,7 @@ void irlmp_unregister_link(__u32 saddr)
> /* Final cleanup */
> del_timer(&link->idle_timer);
> link->magic = 0;
> + hashbin_delete(link->lsaps, (FREE_FUNC) kfree);
Good catch, but I think the right fix sould be:
+ hashbin_delete(link->lsaps, (FREE_FUNC) __irlmp_close_lsap);

and I'll forward it. Thanks a lot.

Cheers,
Samuel.


> kfree(link);
> }
> }

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