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authorDmitry Osipenko <digetx@gmail.com>2018-11-19 00:56:17 +0300
committerMark Brown <broonie@kernel.org>2018-11-19 15:33:17 +0300
commitf8702f9e4aa7b45131af3df5531d6e3835269141 (patch)
tree60c485ee3dac05b6eca89f5dc4f6058d84badfd0 /drivers/regulator/stpmic1_regulator.c
parent6303f3e78b6fd3f84dbe7f2fa4f108d47061d1fb (diff)
downloadlinux-f8702f9e4aa7b45131af3df5531d6e3835269141.tar.xz
regulator: core: Use ww_mutex for regulators locking
Wait/wound mutex shall be used in order to avoid lockups on locking of coupled regulators. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Suggested-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/stpmic1_regulator.c')
-rw-r--r--drivers/regulator/stpmic1_regulator.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/regulator/stpmic1_regulator.c b/drivers/regulator/stpmic1_regulator.c
index e15634edb8ce..eac0848a78c7 100644
--- a/drivers/regulator/stpmic1_regulator.c
+++ b/drivers/regulator/stpmic1_regulator.c
@@ -489,14 +489,14 @@ static irqreturn_t stpmic1_curlim_irq_handler(int irq, void *data)
{
struct regulator_dev *rdev = (struct regulator_dev *)data;
- mutex_lock(&rdev->mutex);
+ regulator_lock(rdev, NULL);
/* Send an overcurrent notification */
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_OVER_CURRENT,
NULL);
- mutex_unlock(&rdev->mutex);
+ regulator_unlock(rdev);
return IRQ_HANDLED;
}