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| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2014-04-03 16:32:17 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-04-14 18:01:24 +0200 |
| commit | 63c7c9e16c8e92cc069854f2babdf82d2d38e4c7 (patch) | |
| tree | cefd292824e43e2923f82316275e803fb5ddab7a /drivers/virt | |
| parent | regulator: core: Add helper to put of_nodes from matches (diff) | |
| download | linux-63c7c9e16c8e92cc069854f2babdf82d2d38e4c7.tar.xz linux-63c7c9e16c8e92cc069854f2babdf82d2d38e4c7.zip | |
regulator: core: Get and put regulator of_node
Currently the regulator core does not take an additional reference to
the of_node it is passed. This means that the caller must ensure that
the of_node is valid for the duration of the regulator's existance.
It is reasonable for the framework to assume it is passed a valid
of_node but seems onerous for it to assume the caller will keep the node
valid for the life-time of the regulator, especially when
devm_regulator_register is used and there will likely be no code in the
driver called at the point it would be safe to put the of_node.
This patch adds an additional of_node_get when the regulator is
registered and an of_node_put when it is unregistered in the core. This
means individual drivers are free to put their of_node references at the
end of probe letting the regulator core handling it from there. This
simplifies code on the driver side.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/virt')
0 files changed, 0 insertions, 0 deletions