[PATCH 00/34] watchdog: Convert to platform remove callback returning void

[Uwe Kleine-König]

Hello,

this patch series adapts the platform drivers below drivers/watchdog 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 a resource leak. One driver suffering from
this problem (s3c2410) is fixed by the first patch.

By changing the remove callback to return void driver authors cannot
reasonably (but wrongly) assume any more that there happens some kind of
cleanup later.

All watchdog drivers but the above mentioned one returned zero
unconditionally in their remove callback, so they could all be converted
trivially to .remove_new().

Note that this series depends on commit 5c5a7680e67b ("platform: Provide
a remove callback that returns no value") that is already in Linus' tree
but not yet included in a tagged version.

Best regards
Uwe

Uwe Kleine-König (34):
  watchdog: s3c2410: Don't skip cleanup in remove's error path
  watchdog: acquirewdt: Convert to platform remove callback returning void
  watchdog: advantechwdt: Convert to platform remove callback returning void
  watchdog: ar7: Convert to platform remove callback returning void
  watchdog: at91rm9200: Convert to platform remove callback returning void
  watchdog: ath79: Convert to platform remove callback returning void
  watchdog: bcm2835: Convert to platform remove callback returning void
  watchdog: bcm47xx: Convert to platform remove callback returning void
  watchdog: bcm_kona: Convert to platform remove callback returning void
  watchdog: cpwd: Convert to platform remove callback returning void
  watchdog: dw: Convert to platform remove callback returning void
  watchdog: gef: Convert to platform remove callback returning void
  watchdog: geodewdt: Convert to platform remove callback returning void
  watchdog: ib700wdt: Convert to platform remove callback returning void
  watchdog: ie6xx: Convert to platform remove callback returning void
  watchdog: lpc18xx: Convert to platform remove callback returning void
  watchdog: mtx-1: Convert to platform remove callback returning void
  watchdog: nic7018: Convert to platform remove callback returning void
  watchdog: nv_tco: Convert to platform remove callback returning void
  watchdog: omap: Convert to platform remove callback returning void
  watchdog: orion: Convert to platform remove callback returning void
  watchdog: rc32434: Convert to platform remove callback returning void
  watchdog: rdc321x: Convert to platform remove callback returning void
  watchdog: renesas: Convert to platform remove callback returning void
  watchdog: riowd: Convert to platform remove callback returning void
  watchdog: rn5t618: Convert to platform remove callback returning void
  watchdog: rti: Convert to platform remove callback returning void
  watchdog: s3c2410: Convert to platform remove callback returning void
  watchdog: sa1100: Convert to platform remove callback returning void
  watchdog: sch311x: Convert to platform remove callback returning void
  watchdog: shwdt: Convert to platform remove callback returning void
  watchdog: st_lpc: Convert to platform remove callback returning void
  watchdog: stmp3xxx_rtc: Convert to platform remove callback returning void
  watchdog: wm8350: Convert to platform remove callback returning void

 drivers/watchdog/acquirewdt.c       | 6 ++----
 drivers/watchdog/advantechwdt.c     | 6 ++----
 drivers/watchdog/ar7_wdt.c          | 5 ++---
 drivers/watchdog/at91rm9200_wdt.c   | 6 ++----
 drivers/watchdog/ath79_wdt.c        | 5 ++---
 drivers/watchdog/bcm2835_wdt.c      | 6 ++----
 drivers/watchdog/bcm47xx_wdt.c      | 6 ++----
 drivers/watchdog/bcm_kona_wdt.c     | 6 ++----
 drivers/watchdog/cpwd.c             | 6 ++----
 drivers/watchdog/dw_wdt.c           | 6 ++----
 drivers/watchdog/gef_wdt.c          | 6 ++----
 drivers/watchdog/geodewdt.c         | 5 ++---
 drivers/watchdog/ib700wdt.c         | 5 ++---
 drivers/watchdog/ie6xx_wdt.c        | 6 ++----
 drivers/watchdog/lpc18xx_wdt.c      | 6 ++----
 drivers/watchdog/mtx-1_wdt.c        | 5 ++---
 drivers/watchdog/nic7018_wdt.c      | 6 ++----
 drivers/watchdog/nv_tco.c           | 6 ++----
 drivers/watchdog/omap_wdt.c         | 6 ++----
 drivers/watchdog/orion_wdt.c        | 5 ++---
 drivers/watchdog/rc32434_wdt.c      | 5 ++---
 drivers/watchdog/rdc321x_wdt.c      | 6 ++----
 drivers/watchdog/renesas_wdt.c      | 6 ++----
 drivers/watchdog/riowd.c            | 6 ++----
 drivers/watchdog/rn5t618_wdt.c      | 6 ++----
 drivers/watchdog/rti_wdt.c          | 6 ++----
 drivers/watchdog/s3c2410_wdt.c      | 9 ++++-----
 drivers/watchdog/sa1100_wdt.c       | 6 ++----
 drivers/watchdog/sch311x_wdt.c      | 5 ++---
 drivers/watchdog/shwdt.c            | 6 ++----
 drivers/watchdog/st_lpc_wdt.c       | 6 ++----
 drivers/watchdog/stmp3xxx_rtc_wdt.c | 5 ++---
 drivers/watchdog/wm8350_wdt.c       | 5 ++---
 33 files changed, 68 insertions(+), 123 deletions(-)

base-commit: 2eb29d59ddf02e39774abfb60b2030b0b7e27c1f
-- 
2.39.1