[PATCH 00/18] remoteproc: Convert to platform remove callback returning void

[Uwe Kleine-König]

Hello,

this patch series adapts most platform drivers below drivers/remoteproc
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.

There is one driver (i.e. ti_k3_dsp_remoteproc.c) that might return an
error code in .remove(). I didn't look in detail into this driver, but
if that error happens, we have exactly the bad situation described
above. (Note that kproc->mem and the register mapping goes away.)

Best regards
Uwe

Uwe Kleine-König (18):
  remoteproc: da8xx: Convert to platform remove callback returning void
  remoteproc: imx_dsp: Convert to platform remove callback returning
    void
  remoteproc: imx: Convert to platform remove callback returning void
  remoteproc: keystone: Convert to platform remove callback returning
    void
  remoteproc: meson_mx_ao_arc: Convert to platform remove callback
    returning void
  remoteproc: mtk_scp: Convert to platform remove callback returning
    void
  remoteproc: omap: Convert to platform remove callback returning void
  remoteproc: pru: Convert to platform remove callback returning void
  remoteproc: qcom_q6v5_adsp: Convert to platform remove callback
    returning void
  remoteproc: qcom_q6v5_mss: Convert to platform remove callback
    returning void
  remoteproc: qcom_q6v5_pas: Convert to platform remove callback
    returning void
  remoteproc: qcom_q6v5_wcss: Convert to platform remove callback
    returning void
  remoteproc: qcom_wcnss: Convert to platform remove callback returning
    void
  remoteproc: rcar: Convert to platform remove callback returning void
  remoteproc: virtio: Convert to platform remove callback returning void
  remoteproc: st: Convert to platform remove callback returning void
  remoteproc: stm32: Convert to platform remove callback returning void
  remoteproc: wkup_m3: Convert to platform remove callback returning
    void

 drivers/remoteproc/da8xx_remoteproc.c    | 6 ++----
 drivers/remoteproc/imx_dsp_rproc.c       | 6 ++----
 drivers/remoteproc/imx_rproc.c           | 6 ++----
 drivers/remoteproc/keystone_remoteproc.c | 6 ++----
 drivers/remoteproc/meson_mx_ao_arc.c     | 6 ++----
 drivers/remoteproc/mtk_scp.c             | 6 ++----
 drivers/remoteproc/omap_remoteproc.c     | 6 ++----
 drivers/remoteproc/pru_rproc.c           | 6 ++----
 drivers/remoteproc/qcom_q6v5_adsp.c      | 6 ++----
 drivers/remoteproc/qcom_q6v5_mss.c       | 6 ++----
 drivers/remoteproc/qcom_q6v5_pas.c       | 6 ++----
 drivers/remoteproc/qcom_q6v5_wcss.c      | 6 ++----
 drivers/remoteproc/qcom_wcnss.c          | 6 ++----
 drivers/remoteproc/rcar_rproc.c          | 6 ++----
 drivers/remoteproc/remoteproc_virtio.c   | 6 ++----
 drivers/remoteproc/st_remoteproc.c       | 6 ++----
 drivers/remoteproc/stm32_rproc.c         | 6 ++----
 drivers/remoteproc/wkup_m3_rproc.c       | 6 ++----
 18 files changed, 36 insertions(+), 72 deletions(-)


base-commit: 1a5304fecee523060f26e2778d9d8e33c0562df3
-- 
2.39.2