From: Sven Eckelmann <sven@narfation.org>
To: b.a.t.m.a.n@lists.open-mesh.org
Cc: mareklindner@neomailbox.ch, netdev@vger.kernel.org,
a@unstable.cc, Gao Feng <fgao@ikuai8.com>,
davem@davemloft.net, gfree.wind@foxmail.com
Subject: Re: [B.A.T.M.A.N.] [PATCH net] net: batman-adv: Fix possible memleaks when fail to register_netdevice
Date: Tue, 25 Apr 2017 15:53:19 +0200 [thread overview]
Message-ID: <1756616.320MP6AHYH@bentobox> (raw)
In-Reply-To: <1493121800-28066-1-git-send-email-gfree.wind@foxmail.com>
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On Dienstag, 25. April 2017 20:03:20 CEST gfree.wind@foxmail.com wrote:
> From: Gao Feng <fgao@ikuai8.com>
>
> Because the func batadv_softif_init_late allocate some resources and
> it would be invoked in register_netdevice. So we need to invoke the
> func batadv_softif_free instead of free_netdev to cleanup when fail
> to register_netdevice.
I could be wrong, but shouldn't the destructor be replaced with free_netdevice
and the batadv_softif_free (without the free_netdev) used as ndo_uninit? The
line you've changed should then be kept as free_netdevice.
At least this seems to be important when using rtnl_newlink() instead of the
legacy sysfs netdev stuff from batman-adv. rtnl_newlink() would also only call
free_netdevice and thus also not run batadv_softif_free. This seems to be only
fixable by calling ndo_uninit.
Kind regards,
Sven
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WARNING: multiple messages have this Message-ID (diff)
From: Sven Eckelmann <sven-KaDOiPu9UxWEi8DpZVb4nw@public.gmane.org>
To: b.a.t.m.a.n-ZwoEplunGu2X36UT3dwllkB+6BGkLq7r@public.gmane.org
Cc: mareklindner-rVWd3aGhH2z5bpWLKbzFeg@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, a@unstable.cc,
Gao Feng <fgao-KlmEoCYek3zQT0dZR+AlfA@public.gmane.org>,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org,
gfree.wind-H32Fclmsjq1BDgjK7y7TUQ@public.gmane.org
Subject: Re: [PATCH net] net: batman-adv: Fix possible memleaks when fail to register_netdevice
Date: Tue, 25 Apr 2017 15:53:19 +0200 [thread overview]
Message-ID: <1756616.320MP6AHYH@bentobox> (raw)
In-Reply-To: <1493121800-28066-1-git-send-email-gfree.wind-H32Fclmsjq1BDgjK7y7TUQ@public.gmane.org>
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On Dienstag, 25. April 2017 20:03:20 CEST gfree.wind-H32Fclmsjq1BDgjK7y7TUQ@public.gmane.org wrote:
> From: Gao Feng <fgao-KlmEoCYek3zQT0dZR+AlfA@public.gmane.org>
>
> Because the func batadv_softif_init_late allocate some resources and
> it would be invoked in register_netdevice. So we need to invoke the
> func batadv_softif_free instead of free_netdev to cleanup when fail
> to register_netdevice.
I could be wrong, but shouldn't the destructor be replaced with free_netdevice
and the batadv_softif_free (without the free_netdev) used as ndo_uninit? The
line you've changed should then be kept as free_netdevice.
At least this seems to be important when using rtnl_newlink() instead of the
legacy sysfs netdev stuff from batman-adv. rtnl_newlink() would also only call
free_netdevice and thus also not run batadv_softif_free. This seems to be only
fixable by calling ndo_uninit.
Kind regards,
Sven
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next prev parent reply other threads:[~2017-04-25 13:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-25 12:03 [B.A.T.M.A.N.] [PATCH net] net: batman-adv: Fix possible memleaks when fail to register_netdevice gfree.wind
2017-04-25 12:03 ` gfree.wind
2017-04-25 13:53 ` Sven Eckelmann [this message]
2017-04-25 13:53 ` Sven Eckelmann
2017-04-26 0:41 ` [B.A.T.M.A.N.] " Gao Feng
2017-04-26 0:41 ` Gao Feng
2017-04-26 5:57 ` [B.A.T.M.A.N.] " Sven Eckelmann
2017-04-26 5:57 ` Sven Eckelmann
2017-04-26 6:44 ` [B.A.T.M.A.N.] " Gao Feng
2017-04-26 6:44 ` Gao Feng
2017-04-26 7:16 ` [B.A.T.M.A.N.] " Sven Eckelmann
2017-04-26 7:16 ` Sven Eckelmann
2017-04-26 7:28 ` [B.A.T.M.A.N.] " Gao Feng
2017-04-26 7:28 ` Gao Feng
2017-06-09 7:23 ` [B.A.T.M.A.N.] " Sven Eckelmann
2017-06-09 7:26 ` 高峰
2017-06-09 7:26 ` 高峰
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