Messages in this thread | | | Date | Tue, 11 Aug 2020 03:07:34 +0200 | From | Michał Mirosław <> | Subject | [PATCH 0/7] regulator: fix deadlock vs memory reclaim |
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For systems that have eg. eMMC storage using voltage regulator, memory reclaim path might call back into regulator subsystem. This means we have to make sure no allocations happen with a regulator or regulator list locked.
After this series I see no more lockdep complaints on my test system, but please review and test further.
First four patches move allocations out of locked regions, next three came as a drive-by cleanups.
Michał Mirosław (7): regulator: push allocation in regulator_init_coupling() outside of lock regulator: push allocation in regulator_ena_gpio_request() out of lock regulator: push allocations in create_regulator() outside of lock regulator: push allocation in set_consumer_device_supply() out of lock regulator: plug of_node leak in regulator_register()'s error path regulator: cleanup regulator_ena_gpio_free() regulator: remove superfluous lock in regulator_resolve_coupling()
drivers/regulator/core.c | 162 +++++++++++++++++++++------------------ 1 file changed, 86 insertions(+), 76 deletions(-)
-- 2.20.1
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