[PATCH v2 0/5] Add dev_warn_probe() and improve error handling in Rockchip SPI drivers

[Dragan Simic <dsimic@manjaro.org>]

This is a small series that introduces dev_warn_probe() function, which
produces warnings on failed resource acquisitions, and improves error
handling in the probe paths of Rockchip SPI drivers, by using functions
dev_err_probe() and dev_warn_probe() properly in multiple places.

This series also performs a bunch of small, rather trivial code cleanups,
to make the code neater and a bit easier to read.

Changes in v2:
  - Collected three Reviewed-by tags from Heiko [1][2][3]
  - Dropped patch 3/5, [4] as suggested by Mark, [5] improved the check
    to use dev_err_probe() and folded that into new patch 5/5
  - Added new patch 4/5 that introduces function dev_warn_probe() that
    produces warnings in probe paths, to avoid the promotion of logged
    messages from warnings to errors, as noted by Heiko [6]
  - Adjusted the description of the series and of the individual patches
    a bit to reflect the changes, where appropriate

Link to v1: https://lore.kernel.org/linux-rockchip/cover.1727337732.git.dsimic@manjaro.org/T/#u

[1] https://lore.kernel.org/linux-rockchip/6085918.31tnzDBltd@phil/
[2] https://lore.kernel.org/linux-rockchip/2285557.3ZeAukHxDK@phil/
[3] https://lore.kernel.org/linux-rockchip/10409403.0AQdONaE2F@phil/
[4] https://lore.kernel.org/linux-rockchip/ce2e7f90e62b15adc2bed1f53122ad39c3a9b5ac.1727337732.git.dsimic@manjaro.org/
[5] https://lore.kernel.org/linux-rockchip/ZvUmk48R4hZYlO71@finisterre.sirena.org.uk/
[6] https://lore.kernel.org/linux-rockchip/6673004.tM3a2QDmDi@phil/

Dragan Simic (5):
  spi: rockchip: Perform trivial code cleanups
  spi: rockchip-sfc: Perform trivial code cleanups
  spi: rockchip-sfc: Use dev_err_probe() in the probe path
  driver core: Add device probe log helper dev_warn_probe()
  spi: rockchip: Use dev_{err,warn}_probe() in the probe path

 drivers/base/core.c            | 110 +++++++++++++++++++++++++--------
 drivers/spi/spi-rockchip-sfc.c |  21 +++----
 drivers/spi/spi-rockchip.c     |  55 ++++++++---------
 include/linux/dev_printk.h     |   1 +
 4 files changed, 117 insertions(+), 70 deletions(-)


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