Re: [PATCH v2 0/2] PCI/AER: Improve Error Source handling

[Bjorn Helgaas <helgaas@kernel.org>]

On Fri, Nov 06, 2026 at 05:38:00PM +0100, Lukas Wunner wrote:
> While analyzing log output provided by Alex, I noticed that the AER driver
> fails to find the error-signaling device if the Error Source ID register
> contains an invalid, non-zero value.  Fix it (patch [2/2]).
> 
> While at it, fix a potential NULL pointer deref in that portion of the code
> (patch [1/2]).
> 
> Changes versus v1 in patch [2/2]:
>   Reorder a < b && b < c comparisons (Ilpo, Bjorn)
>   Amend kernel-doc of find_source_device() (Sathya)
>   s/subordinate/secondary/ in commit message (Bjorn)
>   Document behavioral change in commit message (sashiko)
> 
> Link to v1:
>   https://lore.kernel.org/r/cover.1793697480.git.lukas@wunner.de
> 
> Lukas Wunner (2):
>   PCI/AER: Avoid NULL pointer deref on search for Error Source
>   PCI/AER: Check validity of Error Source ID register
> 
>  drivers/pci/pci.h       |  7 ++++++-
>  drivers/pci/pcie/aer.c  | 37 +++++++++++++++++++++++++++----------
>  drivers/pci/pcie/rcec.c | 14 ++++++++++++++
>  3 files changed, 47 insertions(+), 11 deletions(-)

Applied to pci/aer for v7.5, thank you!