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Unverified Commit 79d6f049 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Mark Brown
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regulator: core: Don't allow to get regulator until all couples resolved 



Don't allow to get regulator until all of its couples resolved because
consumer will get EPERM and coupling shall be transparent for the drivers.

Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f9503385

drivers/regulator/core.c

+10 −0
Original line number Diff line number Diff line
@@ -1747,6 +1747,16 @@ struct regulator *_regulator_get(struct device *dev, const char *id, 
		return regulator;

	}



	mutex_lock(&regulator_list_mutex);

	ret = (rdev->coupling_desc.n_resolved != rdev->coupling_desc.n_coupled);

	mutex_unlock(&regulator_list_mutex);



	if (ret != 0) {

		regulator = ERR_PTR(-EPROBE_DEFER);

		put_device(&rdev->dev);

		return regulator;

	}



	ret = regulator_resolve_supply(rdev);

	if (ret < 0) {

		regulator = ERR_PTR(ret);