diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2018-11-18 22:56:17 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-11-19 13:33:17 +0100 |
| commit | f8702f9e4aa7b45131af3df5531d6e3835269141 (patch) | |
| tree | 60c485ee3dac05b6eca89f5dc4f6058d84badfd0 /drivers/regulator/wm8350-regulator.c | |
| parent | regulator: core: Decouple regulators on regulator_unregister() (diff) | |
| download | linux-f8702f9e4aa7b45131af3df5531d6e3835269141.tar.xz linux-f8702f9e4aa7b45131af3df5531d6e3835269141.zip | |
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/wm8350-regulator.c')
| -rw-r--r-- | drivers/regulator/wm8350-regulator.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 8ad11b074b49..a1c7dfee5c37 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -1153,7 +1153,7 @@ static irqreturn_t pmic_uv_handler(int irq, void *data) { struct regulator_dev *rdev = (struct regulator_dev *)data; - mutex_lock(&rdev->mutex); + regulator_lock(rdev); if (irq == WM8350_IRQ_CS1 || irq == WM8350_IRQ_CS2) regulator_notifier_call_chain(rdev, REGULATOR_EVENT_REGULATION_OUT, @@ -1162,7 +1162,7 @@ static irqreturn_t pmic_uv_handler(int irq, void *data) regulator_notifier_call_chain(rdev, REGULATOR_EVENT_UNDER_VOLTAGE, NULL); - mutex_unlock(&rdev->mutex); + regulator_unlock(rdev); return IRQ_HANDLED; } |