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authorMark Brown <broonie@kernel.org>2015-11-03 05:58:14 +0000
committerMark Brown <broonie@kernel.org>2015-11-04 10:16:05 +0000
commitd9b96d35d2521342fdbcbc7468a0f7dcfaba4147 (patch)
tree43e895d5a496cc63f4ad04e2b9724068a6495004 /mm/migrate.c
parentfc42112c0eaa6fc7c7fe61f8c6fb91b204b4d31d (diff)
downloadlinux-d9b96d35d2521342fdbcbc7468a0f7dcfaba4147.tar.bz2
regulator: Use regulator_lock_supply() for get_voltage() too
Since we need to read voltages of parents as part of setting supply voltages we need to be able to do get_voltage() internally without taking locks so reorganize the locking to take locks on the full tree on entry rather than as we recurse when called externally. Reported-by: John Stultz <john.stultz@linaro.org> Tested-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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