ACK: [SRU] [PATCH 0/1] Fix NULL pointer dereference caused by Intel WiFi

[Manuel Diewald]

On Wed, Jan 03, 2024 at 11:19:14AM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/2046217
> 
> [Impact]
> When iwlwifi firmware causes the WiFi NIC dropped off PCI bus on system
> resume, NULL pointer dereference occurs and the system stops working.
> 
> [Fix]
> Rescan the bus in order to reprobe the device to avoid mac80211 layer
> gets messed up.
> 
> [Test]
> With the fix in place, system keeps working after firmware issue occurs.
> Verified with thousand times of suspend.
> 
> [Where problems could occur]
> If the firmware/hardware is really dead and beyond recoverable, the same
> process can be triggered again and again.
> 
> Johannes Berg (1):
>   wifi: iwlwifi: pcie: rescan bus if no parent
> 
>  drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> -- 
> 2.34.1
> 
> 
> -- 
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> kernel-team at lists.ubuntu.com
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Acked-by: Manuel Diewald <manuel.diewald at canonical.com>

-- 
 Manuel