[PATCH 0/8] spi: fix explicit controller deregistration

[Johan Hovold]

Turns out we have a few drivers that get the tear down ordering wrong
also when not using device managed registration (cf. [1] and [2]).

Fix this to avoid issues like system errors due to unclocked accesses,
NULL-pointer dereferences, hangs or failed I/O during during
deregistration (e.g. when powering down devices).

Johan


[1] https://lore.kernel.org/lkml/20260409120419.388546-2-johan@xxxxxxxxxx/
[2] https://lore.kernel.org/lkml/20260410081757.503099-1-johan@xxxxxxxxxx/


Johan Hovold (8):
  spi: cadence: fix controller deregistration
  spi: cadence-quadspi: fix controller deregistration
  spi: mpc52xx: fix controller deregistration
  spi: mpc52xx: fix use-after-free on unbind
  spi: mxic: fix controller deregistration
  spi: orion: fix controller deregistration
  spi: topcliff-pch: fix controller deregistration
  spi: topcliff-pch: fix use-after-free on unbind

 drivers/spi/spi-cadence-quadspi.c |  4 ++--
 drivers/spi/spi-cadence.c         |  6 +++++-
 drivers/spi/spi-mpc52xx.c         |  6 ++++--
 drivers/spi/spi-mxic.c            |  3 ++-
 drivers/spi/spi-orion.c           |  7 ++++++-
 drivers/spi/spi-topcliff-pch.c    | 11 ++++++++---
 6 files changed, 27 insertions(+), 10 deletions(-)

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2.52.0