[PATCH 0/4] PM / Domains: Handle errors from ->attach_dev() callback

[ulf.hansson@linaro.org (Ulf Hansson)]

This patchset enabled the recently added ->attach_dev() callback to return an
error code.

Typically these callbacks will fetch some PM resourses, like clocks through a
clk_get() which may fail. To be able to handle the errors we need to return an
error code.

Do note, the buses which invokes dev_pm_domain_attach() are already handling
-EPROBE_DEFER, which means the ->attach_dev() callbacks may also return this
if needed.


Ulf Hansson (4):
  PM / Domains: Remove reference counting for the generic_pm_domain_data
  PM / Domains: Don't allow an existing generic PM domain data
  PM / Domains: Improve error handling while adding/removing devices
  PM / Domains: Let the ->attach_dev() callback return an error code

 drivers/base/power/domain.c | 143 +++++++++++++++++++++++---------------------
 include/linux/pm_domain.h   |   3 +-
 2 files changed, 77 insertions(+), 69 deletions(-)

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1.9.1