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Date: Wed, 15 Jan 2020 13:38:41 -0800 (PST) From: David Miller <davem@...emloft.net> To: mgamal@...hat.com Cc: linux-hyperv@...r.kernel.org, sthemmin@...rosoft.com, haiyangz@...rosoft.com, netdev@...r.kernel.org, kys@...rosoft.com, sashal@...nel.org, vkuznets@...hat.com, cavery@...hat.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] hv_netvsc: Fix memory leak when removing rndis device From: Mohammed Gamal <mgamal@...hat.com> Date: Tue, 14 Jan 2020 15:09:50 +0200 > kmemleak detects the following memory leak when hot removing > a network device: > > unreferenced object 0xffff888083f63600 (size 256): ... > > rndis_filter_device_add() allocates an instance of struct rndis_device > which never gets deallocated as rndis_filter_device_remove() sets > net_device->extension which points to the rndis_device struct to NULL, > leaving the rndis_device dangling. > > Since net_device->extension is eventually freed in free_netvsc_device(), > we refrain from setting it to NULL inside rndis_filter_device_remove() > > Signed-off-by: Mohammed Gamal <mgamal@...hat.com> Applied, thanks.
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