Re: [PATCH net-next v8 4/5] netconsole: resume previously deactivated target
From: Andre Carvalho <hidden>
Date: 2025-12-01 22:06:33
Also in:
linux-kselftest, lkml
From: Andre Carvalho <hidden>
Date: 2025-12-01 22:06:33
Also in:
linux-kselftest, lkml
On Mon, Dec 01, 2025 at 03:35:04AM -0800, Breno Leitao wrote:
might hit a similar problem to the one fixed by e5235eb6cfe0 ("net:
netpoll: initialize work queue before error checks")
The code path would be:
* alloc_param_target()
* alloc_and_init()
* kzalloc() fails and return NULL.
* resume_wq() is still not initialized
fail:
* free_param_target()
* cancel_work_sync(&nt->resume_wq); and resume_wq is not
initializedChecking this a bit now and I'm not sure if we have the same problem. On alloc_param_target() the cleanup is simply kfree(nt). free_param_target() is only called as part of netconsole module setup/cleanup but only for targets that were succesfully added to the target list (so are guaranteed to have resume_wq initialised) before we hit the error. Let me know if I'm missing something! -- Andre Carvalho