[lvc-project] [PATCH v2 1/3] cfg80211: Restore initial state on failed device_rename() in cfg80211_switch_netns()

[Johannes Berg]

On Mon, 2025-04-07 at 15:53 +0300, Ivan Abramov wrote:
> Currently, the return value of device_rename() is not acted upon.
> 
> To avoid an inconsistent state in case of failure, roll back the changes
> made before the device_rename() call.

This kind of seems complicated for something that ought to not happen
...

And also (+netdev), what do we do in case this is called from
cfg80211_pernet_exit() - leak the whole network namespace because we
couldn't allocate memory for the name? That seems counterproductive.

I'm really not convinced of this whole patchset.

johannes