Re: [PATCH net] net: dev: Detect dev_hold() after netdev_wait_allrefs()
From: Eric Dumazet <edumazet@google.com>
Date: 2022-01-28 02:23:21
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On Thu, Jan 27, 2022 at 6:22 PM Jakub Kicinski [off-list ref] wrote:
On Fri, 28 Jan 2022 03:14:14 +0100 Jann Horn wrote:quoted
Oh. Whoops. That's what I get for only testing without CONFIG_PCPU_DEV_REFCNT... I guess a better place to put the new check would be directly after checking for "dev->reg_state == NETREG_UNREGISTERING"? Like this?Possibly a very silly suggestion but perhaps we should set the pointer to NULL for the pcpu case and let it crash?
It is already set to 0