On Thu, Jun 20, 2024 at 02:27:09PM +0200, Karol Kolacinski wrote:
> From: Jacob Keller <jacob.e.kel...@intel.com>
>
> The ice_ptp_extts_event() function can race with ice_ptp_release() and
> result in a NULL pointer dereference which leads to a kernel panic.
>
> Panic occurs because the ice_ptp_extts_event() function calls
> ptp_clock_event() with a NULL pointer. The ice driver has already
> released the PTP clock by the time the interrupt for the next external
> timestamp event occurs.
>
> To fix this, modify the ice_ptp_extts_event() function to check the
> PTP state and bail early if PTP is not ready.
>
> Fixes: 172db5f91d5f ("ice: add support for auxiliary input/output pins")
> Reviewed-by: Przemek Kitszel <przemyslaw.kits...@intel.com>
> Signed-off-by: Jacob Keller <jacob.e.kel...@intel.com>
> Signed-off-by: Karol Kolacinski <karol.kolacin...@intel.com>
> ---
> V1 -> V2: removed unnecessary hunk of code and adjusted commit message
Thanks for the update.
Reviewed-by: Simon Horman <ho...@kernel.org>
