[PATCH 00/20] mtd: Convert to platform remove callback returning void

[Uwe Kleine-König]

Hello,

this series converts all platform drivers below drivers/mtd to use the
.remove_new() callback. Compared to the traditional .remove() callback
.remove_new() returns no value. This is a good thing because the driver
core doesn't (and cannot) cope for errors during remove. The only effect
of a non-zero return value in .remove() is that the driver core emits a
warning. The device is removed anyhow and an early return from .remove()
usually yields resource leaks and/or use-after-free bugs.

All drivers touched here returned zero unconditionally in their remove
callback, so they could all be converted trivially to .remove_new().

See commit 5c5a7680e67b ("platform: Provide a remove callback that
returns no value") for an extended explanation and the eventual goal.

As an added bonus the series starts with a minor fix and a
simplification of the txx9ndfmc driver.

The only interdependencies in this series is between the three txx9ndfmc
patches. As there are still quite a few drivers to convert, I'm happy
about every patch that makes it in. So even if there is a merge conflict
with one patch until you apply (or a different concern that doesn't
apply to all patches), please apply the remainder of this series anyhow.
I'll come back to the part that you (maybe) skipped at a later point.

Best regards
Uwe

Uwe Kleine-König (20):
  mtd: rawnand: txx9ndfmc: Mark driver struct with __refdata to prevent
    section mismatch warning
  mtd: rawnand: txx9ndfmc: Drop if block with always false condition
  mtd: bcm47xxsflash: Convert to platform remove callback returning void
  mtd: docg3: Convert to platform remove callback returning void
  mtd: phram: Convert to platform remove callback returning void
  mtd: powernv_flash: Convert to platform remove callback returning void
  mtd: spear_smi: Convert to platform remove callback returning void
  mtd: st_spi_fsm: Convert to platform remove callback returning void
  mtd: hyperbus: hbmc-am654: Convert to platform remove callback
    returning void
  mtd: hyperbus: rpc-if: Convert to platform remove callback returning
    void
  mtd: lpddr2_nvm: Convert to platform remove callback returning void
  mtd: maps: lantiq-flash: Convert to platform remove callback returning
    void
  mtd: maps: physmap-core: Convert to platform remove callback returning
    void
  mtd: maps: plat-ram: Convert to platform remove callback returning
    void
  mtd: maps: pxa2xx-flash: Convert to platform remove callback returning
    void
  mtd: maps: sa1100-flash: Convert to platform remove callback returning
    void
  mtd: maps: sun_uflash: Convert to platform remove callback returning
    void
  mtd: rawnand: txx9ndfmc: Convert to platform remove callback returning
    void
  mtd: spi-nor: hisi-sfc: Convert to platform remove callback returning
    void
  mtd: spi-nor: nxp-spifi: Convert to platform remove callback returning
    void

 drivers/mtd/devices/bcm47xxsflash.c         |  6 ++----
 drivers/mtd/devices/docg3.c                 |  5 ++---
 drivers/mtd/devices/phram.c                 |  6 ++----
 drivers/mtd/devices/powernv_flash.c         |  6 ++----
 drivers/mtd/devices/spear_smi.c             |  6 ++----
 drivers/mtd/devices/st_spi_fsm.c            |  6 ++----
 drivers/mtd/hyperbus/hbmc-am654.c           |  6 ++----
 drivers/mtd/hyperbus/rpc-if.c               |  6 ++----
 drivers/mtd/lpddr/lpddr2_nvm.c              |  6 ++----
 drivers/mtd/maps/lantiq-flash.c             |  6 ++----
 drivers/mtd/maps/physmap-core.c             |  5 ++---
 drivers/mtd/maps/plat-ram.c                 |  8 +++-----
 drivers/mtd/maps/pxa2xx-flash.c             |  5 ++---
 drivers/mtd/maps/sa1100-flash.c             |  6 ++----
 drivers/mtd/maps/sun_uflash.c               |  6 ++----
 drivers/mtd/nand/raw/txx9ndfmc.c            | 15 +++++++++------
 drivers/mtd/spi-nor/controllers/hisi-sfc.c  |  5 ++---
 drivers/mtd/spi-nor/controllers/nxp-spifi.c |  6 ++----
 18 files changed, 44 insertions(+), 71 deletions(-)


base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
-- 
2.40.1